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.

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:
https://www.actuapr.tv/vnr/biggest-diamond-unveiled/

For more information please contact:
Tanja Bojanc Besson
+41-79-9451-922

Meghan Kohler
+41-22-809-15-01