This 15-Carat Rare Pink Diamond Sold For $31.5 Million
And it still fell short of the record price.By Ryan Biek | May 18, 2016
It's not unusual for an auction house to call something unique. But Sotheby's latest diamond may be worth the $31.5 million it sold for Tuesday.
Dubbed "The Unique Pink," it's the "largest fancy vivid pink pear-shaped diamond" ever auctioned, Sotheby's says.
So how rare are we talking here? Sotheby's notes less than 0.002 percent of diamonds presented to the industry's top grading authority are pink.