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 ...

The 31.62-carat Azure Blue, the biggest fancy blue diamond to come to auction, could fetch up to $8.5 million at Christie's ...

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

A 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist sold for $17.3 million ...

The triangular-cut blue-green stone has a color so improbable that, as the Gemological Institute of America notes in its ...

"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 ...

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

PARIS — A 17.61-carat fancy vivid blue diamond sold Tuesday for $44 million — a high price, but short of its highest estimate. An anonymous bidder scooped up the stone, dubbed Bleu Royal, in just ...

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