On Wednesday, a blue diamond at a Hong Kong auction house achieved one of the highest prices for any diamond on the open market. The "De Beers Blue" diamond sold for $57.5 million, Sothebys auction ...

The rare diamond went up for auction in Geneva on Tuesday One of the world’s rarest blue diamonds has sold for nearly $44 million at an auction. The “Bleu Royal” diamond set upon a ring went under the ...

Christie’s will offer “The Mellon Blue,” a diamond that boasts rarity, exceptional quality and important provenance. It is the first release and no doubt the top lot at Christie’s Geneva Magnificent ...

One of the most valuable blue diamonds to ever feature at an auction could sell for more than $48 million, according to Sotheby’s. Named “The De Beers Cullinan Blue,” it is the biggest vivid blue ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The industry term for naturally colored stones is “fancy,” which ...

Maharani of Indore; the 23.24-carat Golconda Blue in a JAR setting Christie’s The monster blue once belonged to Yeshwant Roa Holkar, the dashing Maharaja of Indore, and his equally glamourous wife, ...

A rare blue diamond set in a ring sold for $43.8 million at a Christie's auction in Geneva. Christie's said that the 17.61-carat diamond, the Bleu Royal, is among the rarest to exist. The Gemological ...