The legendary Mellon Blue diamond, a dazzling 9.51-carat blue gemstone once owned by American philanthropist and art collector Bunny Mellon, has sold for an impressive $25.6 million at Christie’s Magn...
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The legendary Mellon Blue diamond, a dazzling 9.51-carat blue gemstone once owned by American philanthropist and art collector Bunny Mellon, has sold for an impressive $25.6 million at Christie’s Magn...