25 May 2018
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The World’s Most Expensive Rough Diamond in Israel for Laser Cutting
The 813-ct. Constellation Diamond to be processed at IDE’s advanced laser cutting facility.
By: Diamond World News Service
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Nov 22 2017 11:15AM
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Reference: 15831  
It is estimated that the 813-carat rough will yield two polished stones of 325-carat and 100-carat, of D colour and flawless clarity, the larger of which will be one of the world’s biggest certified flawless diamonds.

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The 813-carat Constellation Diamond has been brought to Israel to be laser cut, in the first stage of its processing since the diamond was discovered in Botswana’s Karowe Mine by Canadian producer Lucara in 2015.

The Constellation was brought to Israel for processing at the advanced Synova laser cutting facility located in the Israel Diamond Exchange (IDE). The Synova Laser MicroJet (LMJ) technology enables maximum precision and minimum waste in diamond cutting, reducing damage to expensive rough stones and providing higher yields. Israel’s LMJ facility is the most technologically advanced worldwide and is operated by a team with unsurpassed expertise.

The Constellation Diamond may unveil one of the world's largest certified flawless diamond. It was sold for $63 million at a private Sotheby’s auction last year to Dubai-based Nemesis International, making it the most expensive rough diamond sold in recent years. The 1,109-carat Lesedi la Rona rough diamond, found in the same mine by Lucara, sold earlier this year for $53 million. 

Luxury jeweler de Grisogono has acquired the rough stone and will determine its final creation into polished diamonds. It is estimated that the 813-carat rough will yield two polished stones of 325-carat and 100-carat, of D color and flawless clarity, the larger of which will be one of the world’s biggest certified flawless diamonds. 

IDE President Yoram Dvash said, “Having the Constellation Diamond brought to Israel for laser cutting highlights Israel’s role as the global technology capital of the diamond industry. This is the Diamond Exchange we strive for – innovative, creative and energetic.” 

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