File photo of the 1,109-carat stone named 'Lesedi La Rona,' or 'Our Light.'

File photo of the 1,109-carat stone named 'Lesedi La Rona,' or 'Our Light.'

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World's Second Biggest Diamond Sells for $53 Million

The world's second-biggest diamond has finally found a buyer. After failing to sell at a Sotheby's auction last year, the 1,109-carat uncut stone has now fetched $53 million in a private sale to luxury jeweler Graff Diamonds.