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grading criteria

【USA】GIA Clarifies New Guidelines for Lab-Grown Certificates

August 27, 2025 by JemInfo_JewelryGem

Editor’s NoteThe Gemological Institute of America (GIA) has introduced new grading criteria for lab-grown diamonds, effective October 1. The updated…

Categories Design & Trends, Diamond Jewelry, Lab-Grown Diamonds, Supply Chain & Mining Tags certificate guidelines, Diamond Certification, Diamond Industry, diamond quality assessment, Gemological Institute of America, Gemology, GIA, grading criteria, Lab-Grown Diamonds, Premium, Standard, Synthetic Diamonds

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