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 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.

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 ...

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.

It holds the record for the most expensive blue diamond. De Beers Cullinan Blue sold Wednesday for $57,471,960, just narrowly missing the Oppenheimer Blue’s $57,541,779 record, Sotheby’s said ...

A blue diamond was on display among other precious stones in a Sotheby's exhibit in Abu Dhabi, United Arab Emirates. The exhibit's worth totals $100 million with 700 carats of diamonds in total.