Page 23 - கேமொழோகிகள் நிறுவனம் ஆஃப் அமெரிக்கா News Today : Breaking News, Live Updates & Top Stories | Vimarsana

RAPAPORT. The Gemological Institute of America (GIA) has started providing specific information on post-growth treatments for synthetic diamonds, marking the latest shift in its approach to the category. The institute’s Laboratory-Grown Diamond Reports now say if there is evidence of a treatment to change the color of a stone, or if there is no evidence, a GIA spokesperson told Rapaport News Monday. Some stones carry the comment: “Whether this man-made diamond has been treated is currently undeterminable.” Previously, all reports included a generic statement that the lab-grown diamond “may” have been treated. The changes went into effect in early March. The reports will continue to state the growth type: chemical vapor deposition (CVD) or High Pressure-High Temperature (HPHT).

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