Laboratory Standards

IIGJ Lab Updates Ruby Treatment Report Terminology to Align with Global Laboratory Standards

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Editor’s NoteThis article has been updated to reflect the IIGJ Laboratory’s revised terminology for ruby treatment reports, which aims to standardize…

Updated CIBJO Blue Books Available For Downloading

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Editor’s NoteThe latest editions of all six CIBJO Blue Books, the definitive standards for diamonds, colored gemstones, pearls, coral, precious…