Diamonds might be forever but that doesn't stop them being bought and sold. One stone thought to have once belonged to Marie Antoinette, the last queen of France, has just sold for US$14 million ...

The 11.15-carat Williamson Pink Star diamond, auctioned by Sotheby’s Hong Kong, sold for $392 million Hong Kong dollars ($49.9 million).

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 ...

“The Eternal Pink,” a 10.57-carat internally flawless fancy vivid purplish-pink diamond, will be offered at Sotheby’s New York on June 8. Its estimate is $35 million, which if achieved ...

A dazzling pink diamond, described as one of the world's purest, could fetch more than $21 million when it goes under the hammer in Hong Kong in October, auction house Sotheby's said on Wednesday.

A nearly-19 carat rare pink diamond jewel once known as "Fancy Vivid Pink" sold this week at a Christie's auction house in Geneva for a record-breaking, bank account-busting $50 million.

The Pink Star, a 59.6-carat oval mixed-cut pink diamond, and the largest internally flawless fancy vivid pink diamond that the Gemological Institute of America has ever graded, will be auctioned ...