The following guide will give a short description of the treatment process, some gems for which the process is used, how easy or difficult the treatment is to detect for a trained gemologist, how ...
GIA schools are located in major gem and jewelry centers around the world, but no matter where you choose to study, you’ll find the same high standard of curricula Carlsbad The Robert Mouawad Campus ...
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Figure 1. The sapphires in this necklace, ranging in size from 2.4 to 6.7 ct, were reportedly produced in Baw Mar. This is one of the pieces that recently made its way to the Gübelin Gem Lab; some of ...
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Preheat the assembly and apply a protective ceramic spray. The protective ceramic spray will inhibit oxidation from occurring on both the platinum cobalt setting and the yellow gold shank.
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