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 sale ...

From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than the rest Emma Saaty Selections from the Winston Fancy Color Diamond ...

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) including fees. The pear-shaped 9.51-carat “Mellon Blue” — named ...

Is the global turmoil driving sales of portable assets? Or is it just a love of rare jewels? By Jill Newman Alisa Moussaieff was in her London office on May 14, having lunch and bidding over the phone ...

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 ...

Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...

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 ...

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 ...

Sotheby’s is set to auction the De Beers Cullinan Blue Diamond in April during its Hong Kong Luxury Week sales, starting at an estimate of $48-million. The 15.10-carat step-cut diamond is the largest ...

GENEVA — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for $25.6 million, including fees. The pear-shaped 9.51-carat "Mellon Blue" — named for the late American arts ...