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 ...

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 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 ...

The De Beers Blue, a 15.10-carat internally flawless step-cut Fancy Vivid Blue diamond fetched $15.4 million at auction. The De Beers Blue, the largest vivid blue diamond ever to appear at auction, ...

Feb. 16 (UPI) --A 15.1-carat blue diamond is expected to fetch at least $48 million when it goes to auction in April in Hong Kong, Sotheby's announced Wednesday. Known as the De Beers Cullinan Blue, ...

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 ...

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 ...

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 ...

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 ...

Visitors to the American Museum of Natural History may be attracted by glitter, but scientists see more in the unusual stone. By David Belcher Few of the visitors who marvel at the Okavango Blue ...

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 ...