The Azure Blue is one of two important blue diamonds being offered at Christie’s. The second is a 5.04-carat fancy vivid blue diamond Its estimate is $6.5 to $8.5 million ...

Christie's says a 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist has sold for $17.3 million.

Add Yahoo as a preferred source to see more of our stories on Google. If you’re feeling blue, Christie’s has just the gem. The auction house is offering an extraordinarily large 31.62-carat blue ...

"Ocean Dream," the largest blue-green diamond ever recorded, sold for $17 million Wednesday, Christie's auction house said. It was sold for 13.6 million Swiss francs ($17.3 million), a new record for ...

The world's second-biggest diamond has finally found a buyer. After failing to sell at a Sotheby's auction last year, the 1,109-carat uncut stone has now fetched $53 million in a private sale to ...

GENEVA, Switzerland — “Ocean Dream,” the largest blue-green diamond ever recorded, sold for $17 million on Wednesday, ...

The 'Ocean Dream,' 5.5-carat fancy vivid blue-green diamond sold for $17.3 million at the Christie's Magnificent Jewels, ...