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Largest Flawless White Diamond Up For Auction

LONDON, ENGLAND - SEPTEMBER 09: A Sotheby's employee holds the largest D colour, Flawless, Type IIa white oval diamond to come to auction on September 9, 2013 in London, England. The 118.28 carat stone will be offered for auction in Hong Kong at their Magnificent Jewels and Jadeite sale on October 7, 2013. (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.