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Largest Flawless White Diamond Up For Auction

LONDON, ENGLAND - SEPTEMBER 09: A Sotheby's employee wears the The Premier Blue, Brilliant-Cut Internally Flawless Fancy Vivid Blue Diamond on September 9, 2013 in London, England. The 7.59-Carat stone will be offered for auction in Hong Kong at their Magnificent Jewels and Jadeite sale on October 7, 2013 where it is expected to raise US$19 million. (Photo by Peter Macdiarmid/Getty Images)

Largest flawless white diamond up for auction

At Sotheby's forthcoming London Rocks sale in October, two diamonds, a 118.28 carat stone white diamond and the world's largest round fancy vivid blue diamond, a 7.59 Carat stone, estimated in excess of £12 million, are expected to fetch over £30 million between them at the sale.