A rare 11.15-carat pink diamond was sold for $49.9 million in Hong Kong on Friday. The sale set a world record for the highest price per carat for a diamond sold at auction, according to Sotheby’s.
A rare pink diamond has sold for HK$453.2 million (US$57.7 million) in Hong Kong, setting a record for price per carat paid at auction for any diamond or gemstone, according to Sotheby’s auction ...