Guess Jeans founder Georges Marciano paid approximately $16.2 million for an 84.37-carat diamond at Sotheby's on Wednesday, the second-highest price ever paid for a diamond at auction.

Named the "Chloe Diamond" by Marciano, the flawless D-color stone set auction records.

It was the largest flawless brilliant-cut white diamond ever offered at auction and, at $191,980 a carat, set the record for the highest price per carat ever paid for a white diamond at auction.

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