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GIA treated green-yellow diamond Apr 2021
‘Peculiar’ Coloring Helps GIA Spot Treatment
The Gemological Institute of America (GIA) has identified a fancy-color diamond containing rare lines of blue, positing that
News Apr 08, 2021 Rapaport News
Fake green rough diamond
GIA Exposes Rough Diamond with Fake Green Color
Manufacturers coated a rough diamond with a green substance to imitate a natural color, the Gemological Institute of America (GIA)
News Aug 19, 2019 Rapaport News
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