The Top Wedding & Engagement Ring Trends of 2024

The Top Wedding & Engagement Ring Trends of 2024

As bridal jewellery trends constantly change, it's essential for couples planning their wedding to try and keep up with the latest styles. Let's check out the top wedding bands for women and engagement ring trends of 2024, from timeless classics to modern designs that are capturing the hearts of many soon-to-be brides and setting new standards in the industry.

Embracing the Allure of Sapphire Engagement Rings

Sapphires, with their captivating hues and timeless appeal, are taking centre stage in 2024's engagement ring trends. More couples are increasingly drawn to the allure of sapphire engagement rings for their symbolic significance and stunning aesthetics. Whether it's a deep blue sapphire symbolising loyalty or a vibrant pink sapphire embodying romance, these gemstones offer a unique and meaningful choice for couples across Australia.

Sparkling Brilliance: Diamond Engagement Rings

While sapphires shine bright, diamonds remain an eternal favourite as an engagement ring choice. For many Sydney couples, diamond engagement rings continue to hold a prominent place in their hearts. From simple and classic solitaire to intricate halo designs, the versatility of diamond engagement rings ensures there's a perfect match for every style and preference, making them a timeless symbol of love and commitment.

Pop of Colour Wedding Bands

Sydney brides seeking a touch of unique flair are embracing a pop of colour in their wedding bands and engagement rings. This trend goes beyond the traditional diamond, incorporating vibrant gemstones like sapphires, emeralds, and rubies, offering a personalised touch, reflecting the bride's individual style and ensuring a ring that speaks volumes on their special day.

Modern Minimalism

On the other end of the spectrum, modern minimalism continues to be a popular choice for stunning engagement rings. Clean lines, sleek designs, and understated elegance define this trend, appealing to couples with a preference for simplicity and contemporary aesthetics. From sleek metal bands to unique designs, less is indeed more for many couples in 2024. Minimalism is gaining traction, with understated designs complementing a bride's individual style while symbolising the everlasting bond of marriage.

Stackable Wedding Bands for Women

Stackable wedding bands for women are a versatile and timeless choice. Stackable wedding bands are a fun way to create a personalised and fashionable stack that allows brides to mix metals, textures, and gemstones. This trend allows for creativity and flexibility, allowing couples to express their individual style while symbolising the unity of marriage.

Sustainable and Ethical Engagement Rings

With an increasing focus on sustainability and ethical sourcing, more couples are opting for eco-friendly engagement rings. Ethically sourced diamonds, locally sourced and cut sapphires, and recycled metals are becoming popular choices among environmentally conscious consumers in Sydney and across the globe. These rings not only sparkle with beauty but also reflect a commitment to responsible practices.

Unique and Custom Designs

Personalisation is key for couples leaning towards customised designs that reflect their unique love stories. Bespoke jewellers are seeing a surge in demand for one-of-a-kind engagement rings in Sydney and worldwide, as well as wedding bands for women. From intricate engravings to unconventional settings, couples are seeking rings that resonate with their personalities and relationships.

As couples navigate the exciting journey of planning their weddings, the choice of rings becomes a significant expression of their love story and personal style. This year’s trends present a plethora of choices to celebrate love's beauty and diversity, from the enchantment of sapphire engagement rings to the timeless allure of diamond rings in Sydney and the versatility of women's wedding bands.

For exquisite engagement rings in Sydney that embody the latest trends while showcasing timeless beauty, explore our collection at Lizunova. Our curated selection ensures that your ring is not just a piece of jewellery but a cherished symbol of your love and commitment.

A Guide to Choosing Diamond Engagement Rings

A Guide to Diamond Engagement Rings

So you've found the one – your soulmate, your partner in crime, the person who makes your heart skip a beat. Now, it's time to celebrate this incredible chapter with a symbol that reflects the depth of your love: a dazzling diamond engagement ring.

While Sydney boasts a treasure trove of options, the sheer variety might feel overwhelming at times. But fear not! This guide will equip you with the knowledge and confidence to help youdiscover a ring that embodies the unique beauty of your love story.

The Timeless Symbolism of Diamonds

Diamonds have long been cherished as a symbol of everlasting love and commitment, their brilliance mirroring the eternal flame of your bond. More than just a dazzling gemstone, a diamond holds a captivating history and symbolism that makes it the perfect expression of your devotion.

A Spark from the Earth's Heart

Formed under extreme pressure and heat deep within the Earth billions of years ago, diamonds represent immense strength and resilience. This natural wonder embodies the enduring nature of your love, a testament that can withstand the test of time.

Choosing a Diamond: A Journey of Discovery

Choosing a diamond isn't just about size or cost. It's an exciting journey to find a diamond that symbolises your love story. The "Four Cs" – Cut, Colour, Clarity, and Carat – can help you make an informed choice. Cut affects a diamond's sparkle and brilliance by controlling how light reflects. Colour refers to natural hues, with colourless stones being more valuable, while slight variations add personality. Clarity measures imperfections, with fewer inclusions indicating higher quality. Carat denotes weight and size, and a well cut diamond will reflect the light better.

Beyond the Diamond: Exploring Different Styles

Diamond engagement rings in Sydney come in a stunning array of styles, each ready to capture your partner's heart:

If you’re seeking an alternative to diamonds, sapphire engagement rings offer a vibrant pop of colour. Sapphires come in a spectrum of hues, from classic blue to dazzling pink, allowing you to personalise the ring to reflect your partner's unique style.

Choosing the Perfect Ring: Expert Tips

A Touch of Personalisation: Custom Rings Made with Love

Let your love story sparkle with a one-of-a-kind engagement ring. Lizunova offers the exquisite service of crafting custom diamond engagement rings in Sydney. Our skilled jewellers work with you to create a unique masterpiece reflecting your love. We source ethically mined diamonds and gemstones, ensuring responsible practices and a symbol of your devotion.

Ready to find your perfect diamond engagement ring in Sydney and begin your extraordinary journey together? Visit our website or our studio in Sydney to explore our exquisite collection. We can't wait to be part of your love story!

The 4Cs of white diamonds

Diamonds have an enduring, universal appeal and have been used in jewellery, including engagement rings, for centuries. Diamonds are a desirable gemstone and often a status symbol signifying their owners' success. Diamond engagement rings have been popularised by the 1947 advertising campaign by De Beers, 'Diamonds Are Forever". Buying diamonds can be a significant investment and there are many factors to consider - the main criteria are the so called 4Cs used to grade diamonds: colour, clarity, cut and carat weight, which have a significant influence on a diamond's price. Here we explore the big four: The 4Cs of white diamonds.

The 4Cs of white diamonds

Colour

When talking about colour range in white diamonds what we are actually looking for is the absence of colour. A truly colourless diamond is extremely rare and highly prized. Most diamonds possess varying degrees of colour creating differences in value. The highest grade for a diamond with absolutely no colour is D and letter grades are assigned alphabetically all the way down to Z. An ‘icy white’ diamond is typically D, E or F. However, some people like the ‘warmth’ of an I, J or K colour.

An important factor to consider when choosing the colour grade of a diamond is the metal colour it will be set in. Yellow or rose gold are very good at disguising lower colour grades and making those diamonds appear whiter than they would look if set into platinum or white gold. We recommend higher colour grade diamonds when working with platinum and white gold, as lower colour diamonds look visibly yellow compared to the bright silvery colour of these metals.

Within a given budget, you should seek the best balance of clarity, cut and carat to find the perfect diamond for you.

Clarity

Diamond clarity is symbolic of ‘purity’ - the more flaws, the less valuable the diamond. Flawless, VVS (Very Very Slightly included), VS (Very Slightly included) and SI1 (Slightly Included 1) have the least inclusions or flaws. SI2 (Slightly Included 2) is borderline where inclusions may become visible to the naked eye. I (Included) rated diamonds have obvious inclusions or flaws visible to the naked eye.

Within any given budget there's a balance between purchasing a stone with the right combination of colour and clarity. Judging a diamond's clarity just by the certificate values can be misleading, as diamonds with lower colour grading can still appear to have no inclusions when viewed by the naked eye (ie eye clean), due to the inclusions being colourless, and an experienced eye is required to select the right diamond.

Cut

Of all the 4Cs, cut has the greatest effect on a diamond’s beauty. Two diamonds of the same size, colour and clarity will look visibly different depending on their cut – one may look brilliant and bright, the other dull and drab. The better quality the cut, the more brilliance and beauty the diamond will have.

Diamond cut grading runs from Excellent to Poor, with Excellent cut diamonds possessing correct proportions and an even pattern of bright and dark areas.

A diamond that is cut is too shallow, with an overly large spread for its carat weight will “leak” light through the sides or bottom of the stone, while a well-cut and proportioned diamond will reflect out the light through the crown, resulting in superior brightness, fire and scintillation.

Brightness is the measure of light reflected from a diamond. Fire refers to the scattering of white light into all the colours of the rainbow.  Scintillation is the amount of sparkle that a diamond has, and reflections inside the diamond resulting in a particular pattern of dark and light areas.

Diamonds that are step cut, such as asscher and emerald cut, show inclusions much more than brilliant cuts, such as round, pear and oval, so a lot of care must be taken when selecting step cut diamonds.

Carat

Diamond carat is the standard used to measure diamond weight. A carat equals 1/5 of a gram. As diamonds increase in size, their cost tends to increase exponentially. Weight does not always enhance the value of a diamond - particularly if it is cut badly. Indeed a good cut can enhance the perceived size of a diamond.

Some diamond cuts appear larger than their carat weight might suggest, eg oval and marquise cut diamonds have larger spread for their carat weight than round brilliants and cushion cut diamonds.

Diamond fluorescence

Beyond the 4Cs, another factor that has a significant bearing on a diamond's price is fluorescence.

Diamond fluorescence is the tendency for the stone to glow when it is subjected to ultraviolet rays from sources like the Sun and fluorescent lamps. It looks like a bluish, a yellow or orangey hue. Once the ultraviolet light source is removed, the diamond stops fluorescing.

The element that creates this effect is boron and only about 30% of diamonds exhibit some degree of fluorescence. It grades from None, Faint, Medium to Strong and Very Strong.

Generally, the presence of fluorescence is undesirable, however if we compare two diamonds that have the same lower colour grade, the diamond that has blue fluorescence will have a whiter face-up appearance, as the blue hue helps mask a yellowish tint. Yellow fluorescent hue will enhance a yellowish colour of a lower colour grade diamond.

Provided the right characteristics are present, diamonds with fluorescence can present great value for money.

Choosing the right diamond for you

When it comes to choosing a diamond for your engagement ring or a piece of bespoke jewellery, the multitude of factors and nuances can make the process rather overwhelming, as there is a significant emotional and financial cost involved. We are here to make it easy and take away the stress! We will be happy to help you select the right diamond from our extensive local and international networks of ethical suppliers, and deliver not only a stunning ring you will be delighted with, but also the best value for money.  Feel free to email us to enquire, or book a complimentary bespoke diamond engagement ring appointment with us.

Image and ring: lizunova.com

Sapphire engagement ring guide

Timeless Elegance: A Guide to Sapphire Engagement Rings

Welcome to our guide on sapphire engagement rings where we look at the provenance, characteristics, colours and value of the sapphire gem, as well as its use in jewellery. Engagement rings are a meaningful, heartfelt expression of a couple's commitment to build a life together and for most people, they are the most significant piece of jewellery purchased in their lifetime. Natural diamonds have been the traditional centre stone of choice for engagement rings (popularised by the 1947 De Beers campaign, A Diamond is Forever), however sapphires, for centuries used in important jewellery such as royal crowns, have been gaining popularity as the engagement ring centre stone due to their beauty, uniqueness, durability and value for money compared to diamonds.

What is a sapphire?

A sapphire is a precious gemstone made of aluminium oxide (α-Al2O3) that belongs to the corundum family, of which ruby is also a member. It's second only to diamond in terms of hardness, measuring 9 on the Mohs hardness scale. Sapphire is not only beautiful and unique, but also very durable, making it perfect for everyday jewellery, such as a sapphire engagement ring.

Sapphire colours 

Sapphires are primarily known for their rich blue hue (think royal blue and cornflower blue sapphires), but they actually come in a rainbow of stunning colours, such as green, teal, yellow, pink, orange, lilac, purple, grey, white (colourless), black and every shade in between. If that were not enough, sapphires also occur in bi colour or parti colour as well – typically blue, yellow and green combining in one gem to a most magical and completely unique effect.

But what gives sapphires such varied colour? Trace elements present during their formation, such as iron, titanium, chromium, vanadium, nickel and magnesium are the answer. For instance, traces of iron and titanium result in striking blue shades, and the more iron a sapphire contains, the darker the blue. Traces of iron give a sapphire its green colour, while chromium creates pink hues, and the more chromium a stone contains, the deeper the pink. Corundum with a sufficient amount of chromium to make it red is called ruby, which is essentially a red sapphire! As each gem has its very own composition, these variations are what makes each sapphire truly unique and personal.

Sapphire characteristics

Sapphires are exceptionally sparkly, due to their high refractive index and lustre which allows them to reflect light brilliantly.

Sapphires sometimes exhibit asterism - a phenomenon where they display a star pattern when cut into cabochon shapes, adding an extra element of intrigue to these already mesmerizing gemstones.

No two sapphires are exactly alike - each possesses its own unique combination of colour saturation, clarity, size and cut. This individuality gives each sapphire engagement ring its own distinct character and charm.

Sapphires have been cherished throughout history for their symbolism and beauty. They've adorned the crowns of royalty and signify wisdom, loyalty, and nobility. In fact, Prince William proposed to Kate Middleton with his late mother's iconic blue sapphire engagement ring!

Whether you choose a classic cornflower blue or opt for more unconventional shades like green or teal sapphires, these gemstones add uniqueness and sophistication to any engagement ring design.

So if you're looking for something extraordinary that will stand the test of time both aesthetically and symbolically, a sapphire engagement ring might just be the perfect choice!

Sapphire provenance

Sapphires are found in various locations around the world, and each region produces gems with unique characteristics and colours.

One of the most historically famous sources of sapphires is Kashmir, located in the Himalayan Mountains. The sapphires from this region are highly sought after for their intense blue colour and velvety appearance. However, due to limited supply, Kashmir sapphires are extremely rare and valuable and are more of a collector's item.

Another well known, and more plentiful, source of sapphires is Sri Lanka (formerly known as Ceylon). This is where many gorgeous blue sapphires in the sought after royal blue and vivid cornflower blue hues come from, that are prized for their superb colour, lustre and brilliance.

Australia is also a significant producer of high quality sapphires, particularly Queensland and New South Wales. Australian sapphires can range in colour from deep blue to teal, green and yellow, as well as the more rare and sought after lighter seafoam green and teal hues. Many Australian sapphires combine two or three colours, eg blue green (also known as peacock sapphire, as it resembles the colours of a peacock feather), blue green yellow, or blue yellow. These colours can be blended or more strongly delineated, with distinct colour zoning visible in the stone. The colours you can see in these beautiful sapphires typically change when the gems are viewed from different angles and in different lighting conditions, making them truly fascinating and completely unique!

Other notable sources of sapphire include Thailand, Madagascar, Myanmar (Burma), Cambodia, and Montana (USA).

Each location has its own geological conditions that contribute to the formation of these stunning gems. From ancient mountain ranges to volcanic activity millions of years ago, it's fascinating how nature creates such exquisite treasures.

So next time you admire a gorgeous blue, green or vibrant pink sapphire engagement ring – remember that the centre stone likely came from one of these breathtaking regions around the globe!

Are sapphires valuable?

This is a question that often comes to mind when considering purchasing a sapphire engagement ring. The answer is, yes, sapphire is indeed a very valuable gemstone, and part of the precious four family, which also includes diamond, ruby and emerald.

Sapphires have been prized for centuries for their beauty and durability. They rank just below diamonds on the Mohs scale of hardness, making them an excellent choice for everyday wear. Their value is determined by various factors such as colour, clarity, cut, and carat weight, as well as provenance.

Blue sapphires are among the most sought after colours, and the most valuable hue of blue sapphires is the rich blue, known as the royal blue (eg the famous Princess Diana’s engagement ring). Blue sapphires with intense saturation and vividness, a shade or two lighter than the royal blue, are known as the cornflower blue. These vivid coloured blue sapphires are also highly valued and rather rare. Another very rare and valuable sapphire colour is the delicate blend of pink and orange, known as Padparadscha sapphire, owing their colour to traces of chromium and iron. The word Padparadscha is derived from the Sanskrit word describing colour of a lotus flower. These sapphires can be more vivid or pastel in colour, and the balance of pink and orange can vary, with some stones more pink and others more orange.

Sapphires of other colours, such as pink, yellow, green, teal, lilac and orange are also valuable, with factors such as rarity and intensity of colour, clarity, carat weight, cut and origin all contributing significantly to their value.

Is sapphire a suitable centre stone for an engagement ring?

In addition to its beauty, brilliance and uniqueness, sapphire is a durable gemstone that makes a great centre stone choice for an engagement ring. Ranking at 9 on the Mohs scale, second only to diamonds, sapphires can withstand everyday wear and tear without losing their brilliance or colour.

While blue sapphires are the most well known variety, with so many exquisite colours to choose from, such as green, teal, pink, yellow, parti / bi colour and the rare Padparadscha, you can definitely find a stone that reflects your personal style or holds special meaning to you as a couple.

In the traditional lore, sapphires symbolise truth, sincerity, faithfulness and loyalty - qualities essential in any long lasting relationship. They have been used in important jewellery since ancient times, and became popular as an engagement ring centre stone in 14th and 15th centuries.

What is the best colour sapphire for an engagement ring?

This is a truly personal choice and varies greatly from one couple to another! Blue sapphires have been an enduring and classic choice as an engagement ring centre stone. Another popular option is green sapphires, which range from soft pastel shades to deep forest greens. These unique and rare gems bring a touch of nature inspired beauty to any ring setting and look wonderful in any metal colour, be it platinum / white gold, yellow gold or rose gold.

For those looking for a stone that resembles the colours of the ocean, teal sapphires offer a wonderful choice, with their gorgeous combination of blue and green tones. These captivating sapphires are often chosen by couples who love to spend their time by the ocean, and are looking to step away from the conventional in their engagement ring design.

Pink sapphires add a romantic and feminine touch and can vary in colour intensity from deep magenta to pastel pink. The rare Padparadscha sapphires showcase an exquisite orangey pink colour reminiscent of sunset skies or a lotus flower, after which they are named. Pink sapphires look gorgeous combined with warm hues of rose gold or yellow gold, but can also be set in white gold or platinum if cool tones are desired.

Sun kissed yellow sapphires offer warmth and vibrancy, making them perfect for those who want their engagement ring to stand out from the crowd. With its wide range of hues from more subtle, pastel yellows to saturated, golden hues, yellow sapphires are a beautiful and timeless choice sure to make a statement. They look particularly lovely in yellow gold ring settings, which enhances their colour.

Parti sapphires, many of which are native to Australia, are another unique, fabulous choice for a unique engagement ring – even if the ring design is as simple as a solitaire, the uniqueness of the sapphire itself will ensure you will never see a ring like yours on someone else! Parti sapphires look great in any gold colour.

Sapphire engagement ring settings

Sapphire ring designs vary hugely, and can be as simple and timeless as a classic solitaire setting or as intricate and complex as a cluster design.

The timeless solitaire ring design features a single sapphire held in place by prongs or a bezel. The simplicity of this setting allows the sapphire to be the focal point, without distractions of a complex design or additional diamonds or gems. This ring design can also include a hidden halo of diamonds, visible only from the side of the ring.

Another simple and beautiful design is a solitaire with diamonds in the band, adding extra sparkle to the ring, while keeping all attention on the centre sapphire.

Cluster settings are a great way to truly personalise your ring design, and can feature any number and shape diamonds next to the centre sapphire, and can be symmetrical or asymmetric.

For those who prefer a more intricate look, halo settings are an excellent choice. These settings surround the centre stone with smaller diamonds or gemstones, creating a dazzling frame that accentuates the sapphire's colour and adds extra sparkle. Again, the possibilities for personalisation of this design are endless – halo diamonds can be smaller or larger, all the same size or graduated, round or include other shapes, such as marquise, pear cut or baguette, to name a few.

Another option is a three stone, or trilogy setting which typically includes two smaller side stones, e.g. diamonds, flanking a larger centre sapphire. This ring design symbolises past, present, and future making it significant for engagements or milestone anniversaries. There are many shoulder diamond shapes available, such as kites, epaulettes, pear shape, oval, round, baguette, heart, cadillac and trillion to name a few, resulting in endless combinations to choose from, each with its own, distinct look.

Toi et moi (you-and-me) settings featuring two centre stones, are a popular, contemporary ring design and can include two sapphires of different shapes and colours, a sapphire and a diamond, or a sapphire and another gem, such as an emerald or ruby.

And then there are completely unique, one off asymmetric ring designs, created around the stones you pick and the unique story you want your ring to tell!

With so many styles to choose from, it's easy to find one that complements your personal taste and lifestyle while highlighting the beauty of your precious sapphire.

Caring for your sapphire engagement ring

A clean ring is a beautiful ring! Everyday wear will inevitably result in dirt accumulating around and under the settings of your ring and regular cleaning will help maintain your ring's sparkle. While sapphires and diamonds are durable, they are not indestructible, and protecting your ring from impact and harsh chemicals is essential to ensure your ring looks great for decades to come.

Here are our tips to help you maintain the beauty and brilliance of your precious gemstone - for more detail head to our Jewellery Care Guide:

Regular Cleaning

Gently clean your sapphire ring with warm water and good quality dishwashing soap using a soft toothbrush. Rinse thoroughly and pat dry with a soft, lint-free cloth. Most of the dirt will accumulate under the sapphire settings and over the diamonds, if your ring has them, as diamonds repel water and attract oil, so gently brushing under the settings will remove dirt and allow your sapphire to sparkle again.

Avoid Harsh Chemicals

Keep your sapphire away from harsh chemicals such as bleach, chlorine, and other household cleaners. These can damage the stone's surface and may affect its colour.

Proper Storage

When not wearing your sapphire engagement ring, store it in a jewellery box or pouch separate from other pieces to prevent scratching or potential damage.

Avoid Impact

While sapphires are durable, they can still chip or crack if subjected to rough handling or impact. Be cautious when engaging in activities that may expose your ring to potential harm. We recommend removing your ring prior to gym visits, gardening, rock climbing or any other activity which can damage your ring.

Professional Inspection

Just like a car that requires regular inspections to function well, precious jewellery that's worn every day also needs regular maintenance. We recommend regular settings check and cleaning of your ring every 6-12 months, and all Lizunova rings come with complimentary settings check and ultrasonic cleaning service.

By following these simple care guidelines, you can ensure that your cherished sapphire engagement ring remains as captivating as the day you first received it!

To cherish a lifetime

The variety of colours afforded by sapphires and the multitude of engagement ring design options allow you to express your and your partner’s personal style when choosing a ready to wear sapphire engagement ring or commissioning a bespoke ring. No matter what colour or design you choose, a sapphire engagement ring will undoubtedly make a lasting impression on both you and your loved one and be cherished a lifetime.

If you're seeking a unique alternative to a traditional diamond engagement ring while still maintaining elegance and durability, feel free book a complimentary engagement ring design appointment and we can explore the range of possibilities together.

Salt and pepper diamonds

Salt and pepper diamonds have become a popular choice in engagement rings due to their uniqueness and are natural diamonds that are heavily included. Each one has distinctive markings, some resembling a pattern of stars in the night sky – these are called galaxy diamonds. These black markings are carbon spots, pieces of the diamond that never crystallised properly. Salt and pepper diamond engagement rings vary greatly in design as well as the shape of the centre stone, and can be anything from classic to asymmetric and non-traditional.

CUT

They are available in a number of shapes from the more traditional round, oval, cushion, pear and emerald cut, to the unusual, such as kite, hexagon, lozenge and freeform. Rose cut stones (ones that have a flat back and a faceted top) don’t provide as much light return or sparkle as the brilliant cut ones (with a traditional crown and a full pavilion), which scintillate similarly to their colourless counterparts and are more highly valued.

COLOUR

Presented in a variety of colours from white, grey, black to yellow, brown, champagne, blush and pink.

DURABILITY

Diamond is the hardest-known mineral, and salt and pepper diamonds are no exception. However, salt and pepper diamonds need to be carefully selected, as much of the material can be poorly cut and contain cracks and chips.

VALUE

Salt and pepper diamonds are technically lower in quality, as dictated by the four Cs (cut, colour, clarity, carat) of diamond evaluation. But if you find their uniqueness attractive, the good news is they are much more affordable than colourless diamonds.

SOURCES OF DIAMONDS

Angola, Australia, Botswana, Namibia, Russia, South Africa, Zaire.

Major cutting centres of diamonds are in Antwerp, Bombay, New York, Tel Aviv.

DIAMOND SPECIFICATION

Hardness: 10 Mohs

Specific Gravity: 3.417-3.55 (diamond)

Refractive Index: 2.417 -2.419

Crystal Form: Cubic. Diamond crystals occur well-shaped as octahedra, cubes, rhombic dodecahedral and macles. Diamond is found in igneous rock formations and alluvial deposits.

Treatments: None

Special Care: None

Durability: Very good

Lab grown diamond engagement rings

Lab grown diamonds have been used for industrial purposes since the 1950s and gradually made their way to the jewellery market. Nowadays, natural and lab grown diamonds coexist, accepted by both consumers and the trade. Lab grown diamond engagement rings have been gaining popularity due to their much lower cost and excellent colour, clarity and cut.

With identical looks, hardness and durability to the natural diamond, lab grown diamonds represent better value for money (costing on average 30-40% less than a natural diamond), with couples being able to afford a bigger, better quality stone to set into their engagement ring.
 
Lab grown diamond (also referred to as synthetic diamonds, man-made diamonds, laboratory-created diamond, or cultured diamonds) is a gemstone made of the same material as its natural counterpart: pure carbon, crystallised in an isotropic 3D form. Lab grown diamonds are not imitation diamonds, which are made of non-diamond material.

Man has attempted to synthesize diamonds since the late 19th century, however, the first reproducible synthesis of a diamond took place in 1950s in the Soviet Union, United States and Sweden, via the CVD (chemical vapour deposition) and HPHT (high-pressure high-temperature) methods. These two processes still dominate the production of lab grown diamonds today.

The only chemical difference between lab diamonds and natural diamonds is that
most natural diamonds contain tiny amounts of nitrogen, and lab diamonds do not. Of course there is more to a diamond than just its chemical structure. According to professionals with over 50 years of experience in diamond sales, there is energy that sort of speaks to you and can be felt the moment you hold a natural diamond in your hand. However, both lab grown and mined diamonds look identical, and only sophisticated technology can help tell the difference between a natural diamond and its synthetic counterpart.

CVF DIAMONDS

Chemical Vapor Deposition (CVF) method where the diamond is grown from a
Type IIa natural diamond seed. These diamonds have the same chemical
composition and molecular structure as mined diamonds.

Type IIa is the rarest and purest type of natural diamond crystal that sparkles more
and shines brighter, with the least amount of impurities, especially nitrogen.

Less than 2% of all diamonds ever found in nature are Type IIa. Today, the CVF
method allows to buy a bigger, cleaner and Type IIa diamond for the same spend. Like mined diamonds, laboratory grown CVD Type IIa diamonds, have very few higher grade colours, D, E and F colours are very rare - like in nature, there is very little control over the colour.

HTHP DIAMONDS

High Temperature High Pressure (HTHP) method where the diamond is grown from a metal catalyst. HPHT diamonds are made using one of three manufacturing processes: a belt press, a cubic press, or a split-sphere (BARS) press. With HTHP lab grown diamonds, the colour is controlled, thus higher colours are readily available. Larger HTHP lab grown diamonds can contain a metal catalyst and sometimes even stick to a magnet.

The advent of synthetic gems on the market created major concerns in the diamond trading business, as a result of which special spectroscopic devices and techniques have been developed to distinguish synthetic and natural diamonds.

VALUE OF LAB GROWN DIAMONDS

Lab grown diamonds generally cost 30-40% less than mined diamonds, but look
exactly the same. The price difference is for the most part due to the high costs involved in mining and removing tons of earth to find natural gem-quality diamonds.

LAB GROWN DIAMOND SPECIFICATION

Hardness: 10 Mohs
Specific Gravity: 3.417-3.55 (diamond)
Refractive Index: 2.417-2.419
Crystal Form: Cubic
Special Care: None
Durability: Very good

White diamonds: beyond the 4Cs

Interesting facts beyond the 4Cs

Beyond the 4Cs of white diamonds is a multitude of fascinating facts. Despite the fact that diamonds are made of common carbon, there’s something almost supernatural about them. Just the word ‘diamond’ invokes luxury, desirability and toughness. Yet when we think of the element carbon, we are more likely to think of charcoal: soft, black, opaque, earthy, lightweight. In contrast with carbon in its low pressure form as charcoal or graphite, carbon atoms in diamond are fixed together in a strong, three dimensional network. This leads to unique physical properties: diamond is a clear, extremely hard, often colourless mineral with a very high density.

Diamonds sparkle and have internal “fire” because of their very high refractive index. This means light is “caught” inside the crystal and re-reflected off the internal surfaces. Faces and facets made by gem cutters accentuate this property.

Diamond is the hardest known substance, the greatest conductor of heat, has the highest melting point of any substance (4090°C or 7362°F), and the highest refractive index of any natural mineral. Diamond measures 10 on the Mohs hardness scale, and is approximately 4 times harder than corundum (sapphire and ruby), which is 9 on the Mohs scale.

Formation of diamonds

Diamonds form deep within the Earth under extreme heat and pressure.

Although diamonds have been prized as valuable gems for a long time, until the early 1700s virtually all traded diamonds came from river gravels (known as “alluvial deposits”) in India. Then in the early 18th century diamonds were discovered in Brazil, and from 1866 onwards were mined in South Africa. It was in this country that diamonds' major, violently erupted, volcanic source rock known as “kimberlite” was identified for the first time.

This recognition fundamentally changed the diamond exploration and mining industry, and quickly led to vastly increased production and to the high demand from the modern jewellery industry. Supply of diamonds to the market has long been tightly controlled by a small number of major producers – examples include De Beers (South Africa-Botswana), Al Rosa (Russia), Rio Tinto (Argyle Mine Australia and Canadian mines), Lucara Diamond Corporation (Karowe Mine, Botswana), and the Diavik kimberlite pipe in northern Canada.

Diamond colour

Most diamonds are brown or yellow in colour. The jewellery industry has favoured colourless diamonds (commonly referred to as white diamonds) or those that have a colour so subtle that it is difficult to notice. Diamonds in vivid natural hues of red, orange, green, blue, pink, purple, violet or yellow form a group of Fancy Colour diamonds. They are extremely rare and valuable.

Durability

Diamond is the hardest-known mineral, measuring 10 on the Mohs hardness scale. However, the hardness of diamond is directional. It is hardest parallel to its octahedral planes and softest parallel to its cubic planes.

The value of diamonds

Unlike other mined commodities such as copper, gold, oil or coal, diamond has no spot market. Its value is variable and highly subjective, assessed using the 4Cs system: colour, clarity, cut and carat (5 carat = 1 gram). Per carat, uncut diamond values typically vary from around $US10 to $US3,000. Very large (sometimes very historical) gem-quality diamonds however may command price orders of magnitude beyond this. Until 1950s, there was no agreed-upon standard by which diamonds could be judged. GIA (Gemological Institute of America) created the first, and now globally accepted 4Cs standard for describing diamonds.

Clues about diamond origins

Many diamonds contain inclusions of other minerals, which are captured samples from the deep Earth rocks in which the diamond grew. These provide important information for geologists. For example, inclusions of the minerals olivine, pyroxene and garnet tell us their host diamonds grew at depths between about 120 and 300km, in a layer of the Earth known as the sub-continental lithospheric mantle.

This layer is part of the Earth’s continental tectonic plates, and lies below the oldest regions of Earth’s continental crust known as “cratons”. Cratons are up to 4 billion years old – examples include the Australian Pilbara, the South African Kaapvaal, the Canadian Slave and the Russian Siberian craton.

Blue diamonds deep, deep down

Although the sub-continental lithospheric mantle is the most common source of diamonds, some come from much deeper layers in the Earth. These are called sub-lithospheric diamonds, and identified by mineral inclusions consistent with being exposed to much higher pressures found at depths of more than 650km.

recent study looked at a type of rare blue diamond like the Hope Diamond. The researchers consistently detected very high pressure mineral inclusions indicating their diamond hosts grew at depths of at least 660km. These diamonds are blue because of the presence of trace amounts of the element boron.

The question of how boron ended up at great depths in the Earth’s mantle is a fascinating one. Boron is an element that on Earth is highly concentrated in the upper continental crust (less than 20km deep) and in ocean water. Its concentration in deeper mantle rocks is typically extremely low. Boron then must have been re-introduced to the deep layers where the diamonds grew.

This would likely have happened through a process called deep subduction, where the boundary of an oceanic tectonic plate (about 100km thick) fails, and the plate then collapses into the deep Earth’s mantle. This moves boron and other materials from the shallow layers of the Earth down into depths of over 700km. Here the boron is supplied to the growing ultra-high pressure sub-lithospheric diamonds. Kimberlite eruptions then bring the diamonds up towards the surface.

A window into deep Earth

In addition to the boron example above, evidence from other diamond mine sites also supports the idea that Earth elements move from relatively shallow to deeper into the Earth through the process of subduction.

This has been detected by tracking different forms of carbon in diamonds from the South African Cullinan mine, and mineral inclusions in South Australian diamonds.

Deep parts of the Earth still have a physical connection with layers closer to the surface. So yes diamonds are valuable due to being beautiful, hardy and relatively rare – but they also provide a fantastic window into the structure and the history of our Earth.

Diamond sources

Angola, Australia, Botswana, Namibia, Russia, South Africa, Zaire. Major cutting centres of diamonds are in Antwerp, Bombay, New York, Tel Aviv.

Synthetics

Lab-grown or synthetic diamonds are a complete copy of a natural diamond that contain the same crystal lattice structure and chemical formula as a natural diamond.

To form a diamond crystal, the element carbon is placed under high pressure and the temperature of the surface of the Sun. Another way to form a synthetic diamond would be through a chemical vapour deposition where a small seed of a diamond crystal is grown layer by layer in a chamber.

Identification of a natural diamond from a synthetic diamond requires specialised equipment. The nature of inclusions in a natural diamond differs from the types of inclusions found in a synthetic diamond. Not all inclusions are easily visible through the naked eye or by using a loupe.

Lab grown diamonds are inscribed with letters “LG” at the base of the stone.

Imitations

Cubic Zirconia, Moissanite, Swarovski Crystal.

Specifications

Hardness: 10 Mohs

Specific Gravity: 3.417-3.55

Refractive Index: 2.417 -2.419

Crystal Form: Cubic. Diamond crystals occur well shaped as octahedra, cubes, rhombic dodecahedral and macles. Diamond is found in igneous rock formations and alluvial deposits.

Treatments: Annealing, Irradiation, High Pressure, High Temperature (HPHT), laser drilling, fracture filling, coating.

Special Care: None

Durability: Very good

Choosing the right diamond for you

When it comes to choosing a diamond for your engagement ring or a piece of bespoke jewellery, the multitude of factors and nuances can make the process rather overwhelming, as there is a significant emotional and financial cost involved. We are here to make it easy and take away the stress! We will be happy to help you select the right diamond from our extensive local and international networks of ethical suppliers, and deliver not only a stunning ring you will be delighted with, but also the best value for money.  Feel free to email us to enquire, or book a complimentary bespoke diamond engagement ring appointment with us.

 

Image and ring: lizunova.com

Australian Parti Sapphire in engagement rings

Sapphire love

Parti sapphires, including the beautiful gemstones from Australia, have been a firm favourite for couples looking for a unique coloured gem for their engagement ring, with gorgeous teal and blue green sapphires being the most popular choice. Sapphire engagement rings in general have been rising in popularity as sapphires not only come in an array of beautiful colours, they also have excellent durability and offer better value for money than the traditional white diamond.

What is a Parti Sapphire?

Parti sapphires belong to the sapphire family, which is a gem quality corundum. Sapphire is hard wearing, measuring 9 on the Mohs hardness scale, making it an ideal alternative to diamond in a piece of jewellery worn every day, such as an engagement ring. Parti sapphires are multi coloured gemstones that feature colour zones of two or more colours: predominantly blues and yellows - and sometimes greens. The stones are so striking as the colours contrast sometimes vividly, making them a delight for a jewellery designer. These gems are not seen in commercial, mass produced jewellery, where a manufacturer must bulk buy gems that are carefully matched in size, colour and shape.

Parti sapphires are cut from sapphire crystals that display zones of two or more different colours, in such a way that the colours are accentuated and shown off in distinct colour zones, or blended into more even shades. The skill and artistry of the gem cutter is truly put to the test when it comes to cutting parti sapphires! They must first carefully examine the rough, to determine the best cut to transform it into a beautiful stone that shows off its unique colour properties.

The gemstones display different colours when viewed from different angles and in different light sources, making them ideal for people who appreciate gems with personality and individuality.

Where do parti sapphires come from?

Most of the parti sapphires come from Australia, specifically Queensland and NSW, and are ethically mined by small artisanal miners. There is a small percentage of parti sapphires that comes from African sources, and these stones tend to be lighter and more transparent.

Australian sapphires are from alkali-basalt related deposits and are very rich in iron content, which gives them the beautiful rich blue colour. Due to varying concentrations of transition elements (e.g. iron and titanium) in the chemical make-up of the parent fluids (sapphire is essentially aluminium oxide) different colours result. The parti sapphires are so special as each stone has a unique combination of zoning and banding.

Some of the Australian material is faceted in Australia and some is sent to overseas cutters and is sold all over the world.

Oval cut Australian Parti Sapphire 2.07ct, by Sydney jeweller Lizunova Fine Jewels, Chifley Square

Some parti sapphires display an enchanting blend of teal, blue, green and yellow colours, like this 2.07ct oval cut Australian parti sapphire. Image: Lizunova Fine Jewels

Parti sapphires in engagement rings

Because each parti sapphire is unique, couples love them as an engagement ring centre stone, as they allow an unrivalled expression of individuality. These amazing gemstones look spectacular on their own, set in solitaire ring designs or paired with diamonds in a trilogy (three stone) ring design. Shoulder diamonds that accompany a centre sapphire in such a design also come in a huge variety of shapes and sizes, such as kite, trillion, pear cut, baguette, epaulette, bullet, hexagon, marquise, cadillac or round, to name a few. Trilogy ring design is a timeless classic, and parti sapphires look gorgeous highlighted by a sparkling diamond on each side.

Another popular ring design features a cluster of smaller diamonds in each shoulder, where scope for personalisation is truly endless. Another time tested, firm favourite is the classic diamond halo ring design, where the centre sapphire is surrounded by a frame, or a halo of smaller diamonds.

For lovers of antique and vintage inspired designs, who would neverless prefer a new ring over an antique, there are many options, such as milgrain detail, double halos, or designs that are inspired by antique jewellery.

And for those seeking a completely unique engagement ring, asymmetric ring designs offer a great option of reflecting individual preferences and love story.

Parti sapphires look great in all gold colours. Yellow gold tends to bring out more of the green and yellow hues, rose gold brings out a more bluish hue, while white gold and platinum show the true colour of the parti sapphire.

Parti-sapphire-engagement-ring-Sydney-jeweller-Lizunova-Fine-Jewels-Chifley-Square

This cushion cut Australian parti sapphire displays a wonderful blend of green, yellow and teal. Image: Lizunova Fine Jewels

Custom engagement rings with parti sapphires

We love working with this beautiful, truly unique gemstone, especially when it's selected for a bespoke engagement ring. We have a handpicked collection of beautiful parti and teal sapphires in all colours, sizes and shapes, and if needed can source a specific sapphire for your bespoke engagement ring. Appointments are available for you to view our sapphires in person or online, where we can talk you through all aspects of the design process.

Check out our ready to wear parti sapphire engagement rings, or book an appointment with us to view our selection of beautiful loose sapphires, and begin creating your bespoke engagement ring with one of these beauties.



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