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The Importance of Jade Authenticity Certificates
Authenticity certificates are essential for jade buyers and collectors, as they provide verified proof of a jade piece’s natural origin and treatment status. Whether the jade is jadeite or nephrite, certification helps confirm its value, quality, and authenticity—protecting buyers from artificially treated or imitation stones.
Reputable geological laboratories such as the Gemological Institute of America (GIA), Mason-Kay, Authur Gem Lab (AGL), etc. conduct rigorous tests using advanced gemological instruments. These tests typically assess whether the jade has been treated with polymers (B-jade), color dyes (C-jade), or both, versus being untreated natural jade (A-jade).
Common testing methods include:
- Infrared Spectroscopy (FTIR) – Detects polymer impregnation.
- UV Fluorescence Testing – Reveals potential dye treatment.
- Raman Spectroscopy – Confirms mineral composition and detects foreign substances.
- Magnification and Visual Inspection – Identifies surface features and internal structures.
- Specific Gravity and Refractive Index Tests – Distinguish between jadeite, nephrite, and lookalike stones.
A valid certificate from a trusted lab not only enhances the jade’s market value but also builds buyer confidence by ensuring transparency in the stone’s origin and treatment history.