Tag Archives: Blue diamond

The rare Mellon Blue diamond, weighing 9.51 carats, was sold in Geneva for 20.5 million Swiss francs ($25.6 million). The diamond previously belonged to American philanthropist Rachel Mellon, a close friend of former U.S. First Lady Jacqueline Kennedy, according to the Christie’s auction house. Due to its intense color, the Mellon Blue is classified as a vivid “fancy” diamond, a ...

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