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Sotheby's Expecting Over $48 Million For 15-Carat Cullinan Blue, The Largest Blue Diamond At Auction
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15 Carat Sapphire Diamond Ring, Emerald Cut Sapphire 13 Carat W 2 Carat Diamonds For Sale at 1stDibs | 13 carat diamond ring, 15 carat sapphire ring
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