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 auction.

A pink diamond has been sold for a record-breaking price per carat in Hong Kong. The 11.15-carat Williamson Pink Star was purchased for $57.7 million during a Sotheby’s Hong Kong auction on Oct. 7, ...

A flawless fancy vivid purplish pink diamond will be auctioned in June for US$35 million, or US$3.3 million per carat, the highest price per carat placed on any diamond or gemstone prior to its sale, ...

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.

An impeccable diamond coming up for auction takes pretty in pink to an entirely new level. The Eternal Pink Diamond, a 10.57-carat jewel, was fashioned from a 23.78-carat rough stone discovered in ...

Eternal Pink hails from a larger 23.78-carat rough that was discovered by De Beers at the famed Damtshaa mine in Botswana. Over the course of six months, Diacore artisans fashioned the gem into an ...