The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will be the crown jewel at Sotheby’s High Jewelry Auction this May, on ...

Capping a lively and even laughter-filled auction at Christie's, the hammer came down to applause as the 14.62-carat stone, billed as the largest Vivid Blue diamond ever put up for auction ...

A big blue diamond has been found at a South African mine known for churning out famous diamonds, and the stone could be worth tens of millions of dollars. The diamond, extracted from the Cullinan ...

T he Okavango Blue Diamond, a dazzling 20.46-carat stone, is more than just a beautiful jewel-it's practically a miracle of ...

"It is truly a once-in-a-generation stone, and quite simply the greatest blue diamond of its size I have ever seen," Patti Wong, chairman of Sotheby's Asia, said in a statement.

"Everyone who has viewed the 20-carat polished diamond has marveled at its unique coloration, which many see as unlike any blue stone they have seen before. It is incredibly unusual for a stone of ...

The rare diamond went up for auction in Geneva on Tuesday One of the world’s rarest blue diamonds has sold ... and 18k rose gold band. “The stone made almost $44 million," Christie's ...

Maharani of Indore; the 23.24-carat Golconda Blue in a JAR setting ... In 1923, the Maharaja took the stone to Paris to have Chaumet mount it in a diamond bracelet. A decade later, he appointed ...