Meet Astrid
Gemmologist & Jewellery Expert

As a certified goldsmith EFZ, I combine traditional craftsmanship with academic expertise. After completing my training as a bench jeweller in Zurich, I pursued Master's-level studies in Art History and Archaeology in England at Sotheby’s Institute of Art and SOAS, University of London, before specialising in gemmology and, more recently, jewellery valuations.
Qualifications & Specialist Training
I am a qualified Gemmologist and Diamond Grader (FGA, DGA) of Gem-A London, with further training in:
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Pearls
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Advanced Gemmology
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The Scientific Course at the Swiss Gemmological Institute (SSEF) in Basel
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DDI Diamant Institut in Pforzheim
Industry Experience
My professional experience includes work in several goldsmith workshops and at leading auction houses, including:
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Sotheby’s
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Galerie Stuker Auktionen, Bern
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Schuler Auktionen, Zurich
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Koller Auktionen, Zurich
These roles have provided extensive experience in jewellery, gemstones, watches, valuation, and the international art and auction market.
Teaching & Education
Since 2001, I have taught jewellery, silversmithing, and stone-setting students at the Schools of Applied Arts in Zurich and Basel (Schule für Gestaltung Zürich und Basel).
My teaching includes vocational education, continuing professional development, and evening courses in gemmology and related subjects.
Professional Memberships & Industry Involvement
I am actively involved in a number of professional organisations and industry initiatives, including:
Through these organisations, I remain engaged with current developments in gemmology, jewellery history, valuation standards, and professional education.
