Siena | Custom diamond engagement ring

Balancing contrast and geometry, this diamond engagement ring features a round centre stone framed by distinctive diamond accents, handcrafted to order in our Sydney studio in your choice of 18k yellow, rose or white gold, or platinum.

Set with a handpicked natural or lab grown diamond of your choice, each ring begins with the centre stone - selected for its cut, proportion and overall brilliance. Shown here with a round brilliant cut diamond, the design emphasises light, balance and clarity.

White lozenge-shaped natural diamonds and round black diamonds are set into the shoulders, creating a striking interplay of shape and tone. The angular geometry of the lozenge diamonds contrasts with the soft shape of the round centre stone, while the black diamonds introduce depth and definition to the composition.

Elegant and distinctive, this engagement ring offers a contemporary interpretation of a classic design, with a refined and expressive character.

Designed to sit comfortably on the hand, this ring pairs beautifully with both straight and fitted wedding bands, or a bespoke band created to complement its proportions.

Customising your diamond engagement ring

This design can be custom made with a centre diamond or coloured gemstone of your choice, including sapphires, spinels and other precious stones, in 18k yellow, rose or white gold, or platinum. Please contact us to explore bespoke options.

Materials and specifications

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

Shown here with a 1ct round brilliant cut diamond, GIA certified, complemented by white lozenge-shaped natural diamonds, F colour and VS clarity (0.16ct total weight), and round black diamonds.

Pricing and centre stone options

Pricing for this ring is tailored to your chosen centre stone and final specifications, including diamond size, quality and metal selection. A personalised quotation will be provided once your preferred stone is selected.

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 weeks from confirmation of your design.

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.