Gem Lab Identifications & Authentications
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Determining the exact identity of a gemstone, e.g., corundum (ruby or sapphire)
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Is the gem natural?, i.e., mined from the earth; then, is it treated or untreated?
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Or synthetic, lab-created?, i.e., same mineral elements but made in a lab, not earth-mined
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Or Imitation?, e.g., red glass for ruby