Miners have unearthed a rare, two-colored natural diamond in Botswana — and experts say it likely formed in two stages. The diamond is half pink, half colorless. It measures about 1 by 0.63 by 0.57 ...

It's not unusual for an auction house to call something unique. But Sotheby's latest diamond may be worth the $31.5 million for which it sold on Tuesday. >> Read more trending stories Dubbed "The ...

In a sea of jewels, one particular stone has been stealing the show. A rare 10-carat pink diamond will be on display at Christie's Auction House in New York City. The Marie-Thérèse Pink Diamond is a ...

A rare 10-carat pink diamond ring will go up for auction at Christie's in New York City next month. It is said to be tied to Marie Antoinette and will be featured in the "Magnificent Jewels" auction.

The Pink Legacy, an exceptionally large pink diamond, is set to go under the hammer at Christies in Geneva next week, when it is expected to bring in up to $50 million. At nearly 19 carats, the ...

A rare bi-colored pink diamond of “astounding weight” was found at the Karowe diamond mine in Botswana, according to the Gemological Institute of America. Lucara Diamond A rare rough, or uncut, pink ...

A Fancy Vivid Pink diamond is estimated to sell for almost $50 million dollars, auction house Christie’s said on Tuesday (September 25). The diamond, weighing 18.96 carats, is the largest of its kind ...

An 'extremely rare' pink diamond necklace has sold for £190,000 at auction. The necklace, signed and numbered by Cartier, was ...