A mysterious black diamond stumped experts for years until one Belgian cutter invented a new machine to shape the 612-carat ...

Queen Elizabeth owned a dazzling brooch cut from the world’s largest diamond. The Cullinan III and IV brooch has an estimated worth of between £50 and £180 million. Elizabeth inherited the diamonds ...

The world's second largest diamond could soon find a new home in a museum or a sheikh's collection -- but first needs to be properly evaluated, the Belgian firm holding it told AFP Monday. Unearthed ...

CANADA -- A giant 552-carat yellow diamond was discovered in a mine located in Canada's Northwest Territories. Dominion Diamond Mines owns 40 percent of the mine where the diamond was found and said ...

CANADA (WPVI) -- A giant 552-carat yellow diamond was discovered in a mine located in Canada's Northwest Territories. Dominion Diamond Mines owns 40 percent of the mine where the diamond was found and ...

A famous auction house has unveiled a rare black diamond that is possibly from outer space. On Monday, Sotheby's said, "The Enigma" is a 555.55-carat that will go on exhibit in Dubai, Los Angeles, and ...