











Fifteen carats — the weight at which a stone is named, not numbered. Certified, documented individually, set to order.












Above fifteen carats a diamond enters the register where stones carry names and provenance instead of inventory numbers. These are museum-weight diamonds — emerald cuts, rounds, ovals and asschers — each certified by GIA, IGI or HRD, each cut from rough that most years never produce, each priced as the singular object it is.
Individually, and honestly: colour and clarity at this weight separate prices by multiples. The 15 carat and above price guide brackets the ranges with verified figures; every piece here shows its one transparent price with papers before anything else.
Collectors consolidating weight into a single exceptional stone, and buyers marking events that deserve permanence. At fifteen carats the conversation is certificates, provenance and cut quality — an advisor walks you through all three, piece by piece.
Compare 12 carat rings, continue to 20 carat and beyond, or return to the high-carat statement collection and every diamond ring in the House. Brink's-insured delivery, USA and worldwide.