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GIA CVD
GIA Spots Natural-Synthetic Hybrid Diamond
The Gemological Institute of America (GIA) has discovered asynthetic layer that improved the weight and color of a natural diamond, and haswarned that the phenomenon may be happening more often.The cushion modified brilliant, 0.64-carat...
Technology May 20, 2019 Rapaport News
Green glued diamond
GIA Spots Broken Diamond Glued Back Together
The Gemological Institute of America (GIA) has identified a stonecomprising two halves of a diamond that had been stuck together with an “unknownadhesive.” Graders noticed a large fracture and cavity on the table ofthe marquise-cut, 1.38-carat polished...
Polished Markets Aug 14, 2018 Rapaport News
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