RIA
18K White Gold / Pt950. Lab-grown diamond: D/E color, VVS2 clarity, 3EX cut.
Not Mass Produced. Never Stocked. Crafted Once, For One.
Every CINÉRA creation is made to order, handcrafted over 3–5 weeks before shipment. Each piece carries a unique serial number for authenticity and lifetime service tracking.
Cancellations & Returns
As every piece is strictly bespoke, all sales are final. Cancellations are honored within 24 hours of placement, before production begins.
Your Purchase Includes
Complimentary Resizing — one adjustment (up to ±1.5 US sizes) within 30 days of delivery.
Complimentary Repair — coverage for manufacturing defects reported within 14 days of delivery. Excludes normal wear and tear, misuse, or accidental damage.
Please note: Intricate pavé settings and custom engravings may have resizing restrictions. Clients are responsible for return shipping, except in cases of verified manufacturing defects.
Download the printable Ring Size Chart
Not sure of your size? Here's how to find it at home.
Using a ring you already own: print our Ring Size Chart at 100% (actual size), place the ring over the circles, and match its inside edge to the nearest circle. If you fall between two sizes, choose the larger size — wider bands may fit more snugly.
Quick conversions — US · UK · EU · Japan · inside diameter
US 5 — UK J1/2 — EU 49 — JP 9 — 15.7 mm
US 6 — UK L1/2 — EU 52 — JP 11 — 16.5 mm
US 7 — UK N1/2 — EU 54 — JP 14 — 17.3 mm
US 8 — UK P1/2 — EU 57 — JP 16 — 18.1 mm
US 9 — UK R1/2 — JP 18 — 19.0 mm
Every CINÉRA ring includes one complimentary resizing (up to ±1.5 US sizes) within 30 days of delivery.
Independently graded & certified
Every order, fully insured