A 102.34-carat flawless white diamond held by a model is displayed at Sotheby's auction house in London, Feb. 8, 2018. The diamond is the world largest known round brilliant diamond to have achieved "perfection in all critical criteria - Color, Clarity, Cut and Carat", and is expected to reach considerably over 33.7 million dollars by private sale in London. (Photo/Agencies)
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