











Twelve carats — past the ten-carat threshold, into the weights a vault holds rather than a tray. Certified stones, set to order.












Twelve carats is past the threshold where a diamond ring is compared with other rings — it is compared with what else twelve carats could be. Stones of this weight are cut from rough that most years never produces, which is why each one in this collection is documented individually by GIA, IGI or HRD and priced as the singular object it is. Every cut the House works in appears at this weight: emerald, round brilliant, oval, cushion.
From under $50,000 for warmer colours into seven figures for top-colour, top-clarity stones — colour and clarity move the number by multiples at this weight, not percentages. Each piece carries one transparent price, with the certificate shown before anything else; the 10 carat diamond ring price guide and the 15 carat and above guide bracket the weight from both sides with verified ranges.
The emerald cut, for most collectors — its long step facets spread the weight in clean planes and show the stone's true colour honestly. The 10 carat emerald cut collection makes the comparison one step below. Ovals wear the weight longest on the finger; cushions hold it deepest.
Browse high-carat statement rings, step down to 9 carat rings, or return to every diamond ring in the House. Each stone ships fully insured with Brink's, across the United States and worldwide.