Massive flawless diamond goes to auction

A Sotheby's employee holds the largest D color, Flawless, Type IIa white oval diamond to come to auction, Sept. 9, 2013, in London, England.

The 118.28 carat stone, estimated at $28-35 million, will be offered for auction in Hong Kong at the Magnificent Jewels and Jadeite sale on Oct. 7, 2013.

Read more: Auctioneer shows off 118 carat diamond

The 118-carat white diamond on display at Sotheby's in New York, Sept. 4, 2013.

A Sotheby's employee holds the largest D color, Flawless, Type IIa white oval diamond to come to auction, Sept. 9, 2013, in London.

The 118-carat white diamond is on display at Sotheby's auction house in New York, Sept. 4, 2013.

A Sotheby's employee holds the largest D color, Flawless, Type IIa white oval diamond to come to auction, Sept. 9, 2013, in London.

A Sotheby's employee wears the The Premier Blue, Brilliant-Cut Internally Flawless Fancy Vivid Blue Diamond, Sept. 9, 2013, in London.

The 7.59-Carat stone will also be offered for auction in Hong Kong at the Magnificent Jewels and Jadeite sale on Oct. 7, 2013, where it is expected to raise $19 million.

A Sotheby's employee displays the The Premier Blue, Brilliant-Cut Internally Flawless Fancy Vivid Blue Diamond on Sept. 9, 2013, in London.

A Sotheby's employee wears the The Premier Blue, Brilliant-Cut Internally Flawless Fancy Vivid Blue Diamond, Septe. 9, 2013, in London.

A Sotheby's employee models a 7.59-carat internally flawless blue diamond at their New York auction house, Sept. 4, 2013.

The 7.59-carat internally flawless blue diamond on display at Sotheby's in New York, Sept. 4, 2013.