LONDON – Christie’s presented on Tuesday a 163.41 carat flawless emerald-cut diamond, calling it the largest precious stone of its kind to ever go to auction.
An epa photojournalist caught a glimpse of the brilliant jewel, suspended from a necklace, which was set to be auctioned off in Switzerland on Nov. 14 as part of Christie’s Magnificent Jewels.
The stone originated from a 404.20 carat rough white diamond found in eastern Angola last year – the largest ever found in the African country.
Tests at New York’s Gemological Institute of America determined that the stone was a D-color, Type IIA diamond.
It took a team of more than 10 specialists in New York’s diamond district months to transform the rough stone into the final polished gem before it traveled to Geneva, where GRISOGONO founder Fawaz Gruosi along with five specialists were tasked with designing a piece of jewelry with it.
The final asymmetric design features 18 emerald-cut diamonds on one side and allows the diamond to be detached from the necklace.