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IIDGR
De Beers Grading Unit Launches Courses in China
The International Institute of Diamond Grading and Research (IIDGR) will launch a series of educational courses in China through
News Sep 13, 2018 Rapaport News
China synthetic diamond 150
Lab Finds 3ct. Synthetic with Fake Report
A grading laboratory in China has discovered a synthetic diamond masquerading as a natural stone, complete with a forged inscription and
News Apr 15, 2018 Joshua Freedman
Chinese Grading Lab 150 120617
Lab Spots Stone with CVD Coating
A Chinese gemological laboratory has identified a well-concealed synthetic-diamond coating that bolstered the size of a small natural stone.
News Dec 07, 2017 Rapaport News
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