GENEVA --The "Oppenheimer Blue" diamond sold Wednesday for more than 56.8 million Swiss francs ($58.2 million) including fees, setting a new record for the per-carat price for a diamond.Capping a ...

The world's largest blue diamond now has a price tag to match its rarity. The 15.10-carat diamond, called "The De Beers Cullinan Blue," sold for $57.5 million Wednesday in an auction at Sotheby's ...

The world’s largest blue diamond ever to come to auction has sold for 450,925,000 HKD, or $57.5 million. Named “The De Beers Cullinan Blue,” the massive 15.10-carat step-cut gem sold at ...

The Hope Diamond, which was originally mined in India but is now housed at the National Museum of Natural History, has a lower clarity rating of VS1, but a larger size at 45.5 carats.

Save up to 50% on gorgeous Blue Nile diamond Valentine's Day jewelry gifts. Shop the sale for earrings, necklaces, bracelets and more accessories.

A 15.1-carat fancy vivid blue diamond — known as The De Beers Cullinan Blue — is projected to be auctioned for a whopping $48 million.