DCGIA thanks GIA for sharing these very informative videos!

Video #1 – Dr. Smith shares what he has learned from exceptional diamonds, such as the Cullinan and Koh-I-Noor, that formed beneath the surface of the Earth. Smith, the researcher who made the discovery, published a breakthrough article in the December 2016 issue of Science magazine.

Video #2 – Learn more about the latest developments in HPHT and CVD synthetic diamonds, the status of gem-quality synthetic diamonds in the market and the methods used by GIA to detect them.

Video #3 – Learn about the state of the Colombian emerald industry from the perspective lens of a field gemologist, as he tours Colombia’s major emerald mines and visits dealers and cutters in Bogotá.