Online lesson: History of Gemstones (SESSION 1) The ancient use of biogenic gem materials. Hardstones (e.g. turquoise, lapis lazuli, chalcedonies and jades) and gemstone engraving. The early use of diamond, emerald, sapphire and other coloured gemstones. Nomenclature challenges.
Sep 24, 9:00 AM or 7:00 PM (Lisbon/London timezone)
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Businesses established in Portugal: IVA at a 23% is added. NIF or NIPC is recommended for invoicing.
Video/audio recordings: Due to local privacy law, recording of the session is strictly NOT permitted.
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