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Colombian Emeralds

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This permanent, synthetic epoxy resin emerald treatment was developed by the Centro Gemologico para la Investigación de la Esmeralda (CGIE) in Bogota, Colombia. (Gemology Center for Emerald Investigation) The treatment was intended to be a Colombian alternative to the Gematrat and ExCel permanent treatments. It is reportedly a stable, permanent treatment that will not evaporate or leak and can safely be subjected to ultrasonic cleaning?. The same resin has been used in other commercial applications outside of the jewelry industry.


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