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Blue beauty: Fancy colour diamonds impress at auction
Image Gallery (4 Images)
Fancy colour diamonds have returned to the spotlight at a Christie's auction in New York. | Source: Christie's
Harry Winston earrings featuring reddish-pink Tanzanian spinels
Van Cleef & Arpels interchangeable Ruban Mysterieux necklace
Blue diamond ring featuring a 9.01-carat fancy-blue stone
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