de GRISOGONO: World's Largest Flawless Diamond Ever up for an Auction

HONG KONG, Sept. 28, 2017 /PRNewswire/ -- Diamond necklace featuring 163-carat flawless emerald stone, largest of its kind ever to be put up for an auction, has been unveiled in Hong Kong on Thursday September 28.

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The diamond was cut from the 404-carat stone, named the "4 de Fevereiro" discovered in early February 2016 in Angola. A team of 10 diamond-cutting specialist were involved in cutting and polishing the rough diamond during the period of 11 months.

The stone was than designed into a one-of-a-kind piece by the jewellery house de Grisogono. It is classified as a rare Type IIa diamond, which in technical terms means an almost complete absence of nitrogen in the stone. 

It took over 1700 hours to create this unique jewel and involved a team of 14 craftsmen and their know-how as well as love for perfection for each detail in the necklace.  

The finished piece, named The Art of de Grisogono will be presented in a series of public viewings around the world before it goes up for an auction at Christie's in Geneva on November 14.

A Video News Release (VNR) containing images from the press conference, including b-roll of the diamond and the necklace will be available for download in broadcast and web quality through the following digital platform:

For more information please contact:
Tanja Bojanc Besson

Meghan Kohler