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
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