What Are The Three Types Of Opals? | What Is A Gilson Opal

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What Is A Gilson Opal: A Guide To This Rare Gemstone

Are Gilson opals real? In the 1970s, French ceramicist Pierre Gilson made a remarkable discovery: he figured out how to create simulated gemstones. These are… Read More »What Is A Gilson Opal: A Guide To This Rare Gemstone