A pink diamond closed at auction for $57.73 million in Hong Kong Friday night, the most expensive diamond per carat ever sold. The 11.15-carat Williamson Pink Star diamond sold at a Sotheby’s auction.

Christie’s will bring an 18.96-carat fancy vivid pink diamond to auction during its November 13 Magnificent Jewels sale in Geneva. The rectangular-cut gem—called the Pink Legacy—is the largest and ...

A pear-shaped diamond that appears to be wider than a human thumb is going up for auction — and it’s projected to be worth tens of millions of dollars. The 228.31-carat diamond, which has been ...

NEW YORK – A pink diamond the size of a postage stamp is going on the auction block, and it’s estimated to bring as much as $28 million. The 16.08-carat gem is poised to set a record for a ...

Heritage Auctions, an auction house based in Dallas, Texas, that deals mainly with auction lots and listings primarily pertaining to comics, video games, trading cards, and other items of a similarly ...

A pink diamond that is believed to be one of the purest in the world could sell for more than $21 million at auction next month. The "Williamson Pink Star" diamond is 11.15 carats, cushion-cut and has ...

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 ...

A 15.1-carat blue diamond set to go on auction in April could fetch upward of $48 million, according to officials at Sotheby's, the auction house handling the diamond. The De Beers Cullinan Blue, a ...

You’ll need deep pockets to bid on this bling. A massive 242-carat diamond is heading to the auction block next month in Dubai. The bidding starts at more than $2 million. Russian state-controlled ...

Heritage Auctions, an auction house based in Dallas, Texas, that deals mainly in auction lots and listings primarily pertaining to comics, video games, trading cards, and other items of a similarly ...