Getty Images / Carl Court

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.

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And even fewer are over 15 carats. 

Still, the diamond sold for less than the top estimate of $38 million

And even that was far lower than the record for a pink diamond –– the "Graff Pink" 25-carat diamond sold in 2010 for $46.2 million. 

As of Wednesday morning, the buyer of "The Unique Pink" hadn't been named.  

This video includes images from Getty Images and clips from Sotheby's and the Gemological Institute of America Inc. 

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