World's largest flawless diamond ever to be auctioned will be unveiled this week

A 163-carat D flawless diamond, described as the largest ever put up for auction, will be unveiled in Hong Kong on Thursday.

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‘D’ graded diamonds are colorless.

The diamond, which will be unveiled by jewelry specialist de Grisogono, is cut from a 404-carat stone named the “4 de Fevereiro” that was discovered in Angola in February 2016. A team of diamond cutting specialists spent 11 months cutting and polishing the gem, which will be auctioned as a 163-carat stone in Geneva, Switzerland on Nov. 14.

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After the unveiling, the diamond will be taken on a world tour, before heading to Geneva for auction.

In 2015 a ‘perfect’ 100-carat flawless D diamond was sold at Sotheby’s New York for $22 million, including the buyer’s premium.

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An uncut diamond the size of a tennis ball sold for $53 million Tuesday. British jeweler Graff Diamonds bought the 1,109-carat stone, the Lesedi La Rona, which was mined in Botswana in 2015.

Follow James Rogers on Twitter @jamesjrogers

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