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Emerald imitation
Fake Emerald Comprises Slabs of Glass
Fraudsters created an imitation emerald by assembling five pieces of glass around a beryl core using a “laborious multi-step cut-and-glue
News Aug 20, 2018 Rapaport News
GIA ruby overgrowth
GIA Spots Lab-Grown Ruby Layer on Natural Stones
Attempts to upgrade the size and color of gemstones using a layer of synthetic material have been around for
News Mar 19, 2018 Rapaport News
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