A 24 minute webinar video to teach you how to perform 100% accurate gemstone identifications. This video is based on a proven concept in gem identification that most gemology schools fail to teach. Inductive gem identification is time consuming, burdensome, and can be very inaccurate. Deductive gem identification teaches you how to minimize the number of tests required and produce more accurate identifications. It is taught by the Gem-A in London and by the ISG in the United States. This video is from the Registered Gemologist Appraiser program from the International School of Gemology.
26 авг 2024
