VAN CLEEF & ARPELS - YEAR 1921 RARE DUCK IN FLIGHT BROOCH WITH DIAMONDS The bird in flight is represented in volume on several planes and entirely paved with rose-cut diamonds in a very fine pearl setting. Set in platinum with an onyx cabochon for the eye. Numbered French work. Gross weight: 18.12 g (clip system in 18K white gold). Dimensions: 6 x 5.2 cm. IAJA appraisal by Catherine Cariou and Olivier Bachet. References: Catalogue of the Van Cleef & Arpels Collection, Edition Xavier Barral for a magnificent set of four birds, all different. Catalogue of the "Les Pierres précieuses" exhibition at the Museum d'Histoire Naturelle in Paris, where you will find the Seagull and Hummingbird brooches. Various period advertisements by Van Cleef & Arpels entitled Novelties, Ornamentation for hats and headgear. A diamond, platinum and 18K white gold duck brooch by Van Cleef & Arpels, 1921. French assay mark. Numbered. Gross weight : 18,12 gr. (posterior 18K white gold clip system). Dimensions : 6 x 5,2 cm. IAJA expertise Catherine Cariou and Olivier Bachet. References: Van Cleef & Arpels Collection Catalog, Xavier Barral Edition, for a magnificent set of four birds, all different. Catalog of the "Les Pierres" exhibition at the Natural History Museum in Paris. Various vintage Van Cleef & Arpels advertisements entitled "Novelties, Hat and Hair Ornaments."