Lab-Grown Gilson vs. Natural Coober Pedy Opal Triplets: Let’s Take a Look
When presented with fine quality Coober Pedy opal triplets, at first glance, it may be hard to tell if they are made from natural, or lab grown. In fact, it can be hard for a Graduate Gemologist to tell as well; unless they have worked with the loose material. First off, what is a triplet? […]
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