Diamonds: Record-Setting Briolettes, Digging for Diamonds in Wells & More

It Had to Be Blue On Nov. 14 at Sotheby’s Geneva, a 10.48 ct. fancy deep-blue briolette diamond fetched $1.036 million a carat, setting a world record per-carat price for a deep-blue stone. The buyer: London dealer and auction perennial Laurence Graff, who paid $10.8 million—a record for a briolette diamond. Source of Controversy A coalition of leading U.S. industry groups has developed the Diamond Source Warranty Protocol, which they bill as a new way for retailers to ensure that diamonds from problematic areas do not infiltrate their supply chain. The scheme—endorsed by Jewelers of America, the Jewelers Vigilance Committee, and the Diamond Manufacturers and Importers Association of America—does not specify any diamond-producing regions to avoid. The areas, however, could include the Marange region of Zimbabwe, where diamond mines are currently subject to U.S. sanctions, o

This content is exclusive to JCK Pro subscribers. Subscribe now to access this and much more with discount code GOPRO21 for $199 for an entire year of access (reg. $249).


Already a JCK Pro? Log in

A JCK Pro subscription is your all-access pass to people and resources on the
cutting edge of the retail jewelry industry, from the industry authority you
know and trust

Learn about the Perks of JCK Pro

Log Out

Are you sure you want to log out?

CancelLog out