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

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 ...

The bidding did not reach the unspecified reserve price. — -- After much admiration and anticipation, the world’s largest uncut diamond failed to sell at a public auction Wednesday night. The ...

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 ...

Taylor Swift’s engagement ring has changed the game. After years in the shadows of cushion cuts, old mine cut rings are now back in the spotlight. Within a day of NFL star Travis Kelce’s proposal to ...

Taylor Swift revealed her engagement ring after announcing her engagement to Travis Kelce on August 26. The ring appears to be an antique cushion-cut or old mine-cut diamond with one-of-a-kind design ...