The CGL Laboratory
Carat Gem Lab (CGL) is an independent gemological laboratory based in France, which was founded in 2009 by Dr. Eric Erel.
The laboratory provides a full range of services for trade members, including diamonds and colored diamonds grading as well as gemstones identifications and origin determinations.
During those years, he published and co-published numerous articles in international gemological magazines and journals. Some of these articles can be downloaded on this website.