Gemological Institute of America (Gemological Institute of America, GIA) recently discovered an unusually large number of undisclosed synthetic diamonds mixed with natural diamonds chalk, Rapaport said in a statement.
Laboratory GIA Mumbai has been found that a run of 323 diamonds chalk with an average size of from 0.014 to 0.015 carats contained 101 synthetic diamond created by chemical vapor deposition (CVD), said director of research institute and development GIA Vui Wang (Wuyi Wang ). Diamonds were presented in Analysis Services chalk GIA, and that made the discovery.
GIA has launched the service in December last year and regularly to detect small amounts of undisclosed synthetic diamonds chalk in some parcels submitted for analysis, Wang said.
However, he explained that "the first time we are seeing such a high percentage of synthetic diamond mele CVD, mixed with natural stones."
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De Beers company has said it aims to maintain and develop the diamond cutting business in those countries where it is mining diamonds.
"Our strategy beneficiation ensures that we sell part of the volume of extracted diamonds to sightholders, who created rock processing operations in the countries of production" - say in De Beers.
"Beneficiation helps create additional employment opportunities, support the government's plans for economic development and promotes the transformation of their economies out of the discharge of raw materials", - added in the company.
The De Beers noted that 2015 was a remarkable year for the diamond beneficiation, as the company managed to sign several new contracts with companies in the diamond-producing countries.
"However, this year has also become particularly difficult for our customers in the diamond-producing countries, in view of the difficult situation of the world diamond cutting industry," - added to the company.
De Beers announced the launch of a new contract period for its customers in Botswana, South Africa and Canada at the end of the first quarter of this year.
"It made our customers to adhere to more stringent criteria for the financial statements, which are designed to enhance the credibility of sightholders from third parties, as well as to reduce the business risks associated with sustainable development and access to finance", - concluded the De Beers.
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