COLOURED DIAMONDS

Online lesson: Winter 2026 Program (SESSION 3) Coloured diamonds vs fancy coloured diamonds, a question of terminology standards? Diamond type classification. A few colour causing mechanisms in natural diamonds, in simple language. Treated-colour diamonds. Fancy colour grades and the impact of cutting in the colour grade. Illustrated with a few famous coloured diamonds.

JANUARY 9, 9:00 AM or 7:00 PM (Lisbon/London timezone)

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Video/audio recordings: Due to local privacy law, recording of the session is strictly NOT permitted.