The Graff Vivid yellow diamond sold for $16.3m at Sotheby's in 2014. Sotheby's now holds the world auction records for four of the most sought-after diamond colours: white, pink, blue and yellow.

The Graff Vivid yellow diamond sold for $16.3m at Sotheby's in 2014. Sotheby's now holds the world auction records for four of the most sought-after diamond colours: white, pink, blue and yellow.

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