Mercer | Emerald cut grey spinel engagement ring

A sculptural gemstone engagement ring, inspired by the bold geometry of New York City, handcrafted to order in our Sydney studio in your choice of 18k yellow, rose or white gold, or platinum.

Set with a handpicked natural gemstone of your choice, each ring begins with the centre stone - carefully selected for its colour, tone and overall character. This design is centred around an emerald cut gemstone, chosen for its clean lines and architectural presence.

Flanking the centre stone are natural baguette cut white diamonds, reinforcing the linear geometry of the design and creating a refined, structured composition. The setting features a distinctive two-tone construction, with platinum paired with a contrasting yellow gold band underside, adding depth and subtle contrast.

Bold yet considered, this gemstone engagement ring offers a modern interpretation of Art Deco influences, designed for those drawn to strong lines, balance and understated individuality.

Customising your gemstone engagement ring

This ring is designed to be fully customised around your chosen centre stone. You may select from a curated range of natural sapphires, diamonds, spinel or other gemstones, with guidance provided to align with your preferred colour, shape and overall aesthetic.

Materials and specifications

This engagement ring is handcrafted in your choice of 18k yellow, rose or white gold, or platinum, and set with a natural gemstone selected specifically for you.

Shown here in platinum with an 18k yellow gold band underside, featuring a 4.87ct emerald cut natural bluish grey spinel, and natural baguette cut white diamonds totalling approximately 0.97ct.

Pricing and centre stone options

Pricing for this ring varies depending on the selected centre stone. We will guide you through available gemstone options, such as natural sapphires, diamonds, spinels or other gems, based on your preferences and budget, and provide a tailored quote.

Production time and ordering

Each ring is made to order in our Sydney studio and is not available for direct online purchase. Production time is approximately 5–6 weeks from confirmation of your design.

If you require assistance with sizing, you can order a ring sizer through our website.

Please contact us to begin the bespoke process.

Packaging and insured shipping

All pricing is in Australian dollars. We offer complimentary insured shipping worldwide. Every piece is presented in our signature Lizunova packaging. If your piece is a gift, you may include a personalised message at checkout.