Online lesson: GEMSTONE TREATMENTS (HOME GEMMOLOGY SESSION 4) A quick look into the most relevant gemstones treatments today, including the various types of heat-related treatments, irradiation, fracture and cavity filling, impregnation, bleaching, dying, various coating processes, laser-related treatments and HPHT, with a few examples. Discussion on their impact, treatment disclosure and industry best practices.
APR 8, 9:00 AM or 7:00 PM (Lisbon/London timezone)
Legal information:
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Video/audio recordings: Due to local privacy law, recording of the session is strictly NOT permitted.
