A pink diamond that is believed to be one of the purest in the world could sell for more than $21 million at auction next month. The "Williamson Pink Star" diamond is 11.15 carats, cushion-cut and has ...

A pink diamond has sold for a record-setting price at auction. An 11.5-carat pink diamond just set a new world record, selling for $57.7 million, which is more than $5 million per carat. It shatters ...

The Pink Star, a remarkable 59.60 carat oval cut pink diamond, sold at Sotheby’s in Hong Kong last week for a cool $71.2 million to Chow Tai Fook, a Chinese jeweler. It is the most expensive jewel ...

A giant pink diamond has become the most expensive jewel ever sold at auction, fetching $71.2 million at Sotheby's in Hong Kong on Tuesday.Clocking in at 59.60 carats, the Pink Star was the largest ...

It’s been nearly two years since the closure of the Argyle Mine in Western Australia, the source of more than 90 percent of the world’s pink diamonds, and demand for the rarefied gems has trended ...

The cushion-cut gem is now the second most valuable jewel or gemstone ever sold at auction, following the 59.6-carat Pink Star diamond that realized $71.2 million in 2017. It also set a new per-carat ...