Jewellery
Koller offers a fine selection of coloured precious stones, diamonds, natural pearls and jewellery from all periods, mainly from private collections. Our four annual jewellery auctions offer a wide range of vintage and signed pieces at all price levels.
Some of the well-known makers which are always present in our auctions are Boucheron, Bulgari, Cartier, Harry Winston, JAR, Mauboussin, Tiffany & Co., Van Cleef & Arpels, and Webb.
Jewellery has always been considered desirable to own and wear as well as a solid investment, and this is true today more than ever. Our specialists examine and estimate your jewellery from a historical and aesthetic perspective, analyse its value on the current market, considering factors such as its provenance and collectability. Our long experience and intimate knowledge of the market are our guarantee of a professional evaluation of your jewellery as well as the successful handling of its sale. The numerous visitors to our previews in Zurich, Geneva and Germany, combined with our international network of collectors and professionals, assure worldwide interest and exceptional auction results.
Our jewellery specialists are available to estimate single items or entire collections for our upcoming auctions.
Consignments are accepted until mid-January for our April auctions, late March for our June auctions, late June for our October sales, and late September for our December auctions.
UPCOMING AUCTIONS
2 December 2026.
If you wish to consign to one of our auctions, we will value your artworks free of charge. Please send us photos if possible, or call us. We will arrange an appointment to view your property at your home or in one of our offices in Zurich, Geneva, Florence, Munich or Düsseldorf. You will then receive our auction estimates so that you can make your decision.
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Contact us
Contact your local representative
Valuation Events
Milan
29 January / 4 September
Lugano
30 January / 15 September
Dusseldorf
20 February / 10 September
Berlin
11 February
Hamburg
12 February / 8 September
Frankfurt
19 February
Munich
26 and 27 February / 11 September
Geneva
6 February
To make an appointment with our specialists, please contact the department or your local representative.
SELECTED RESULTS Jewellery
DIAMOND AND RUBY RING
CHF 131 250
BURMA RUBY AND DIAMOND NECKLACE, probably ca. 1880
CHF 81 250
UNMOUNTED MOZAMBIQUE RUBY
CHF 131 250
COLOMBIAN EMERALD AND DIAMOND BRACELET, MEISTER
CHF 106 250
DIAMOND EARCLIPS, HEMMERLE
CHF 87 500
DIAMOND SET, VAN CLEEF & ARPELS
CHF 175 000
GOLD DEMI-PARURE, probably CASTELLANI, ca. 1870
CHF 50 000
COLOMBIAN EMERALD AND DIAMOND EARCLIPS
CHF 55 000
PEARL AND DIAMOND BRACELET, CARTIER, ca. 1960/70
CHF 137 500
DIAMOND RING, probably CARTIER, ca. 1920
CHF 150 000