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:
-
Pearls
-
Advanced Gemmology
-
The Scientific Course at the Swiss Gemmological Institute (SSEF) in Basel
-
DDI Diamant Institut in Pforzheim
Industry Experience
My professional experience includes work in several goldsmith workshops and at leading auction houses, including:
-
Sotheby’s
-
Galerie Stuker Auktionen, Bern
-
Schuler Auktionen, Zurich
-
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.
