Pendant describing a stylized treble clef, silver, signed and stamped, circa 1970, Tuareg torque in engraved silver, circa 1960 
 
Swiss sculptor, goldsmith and jeweler, based in France, Gilles Jonemann, created artistic jewelery at the request of the greatest Parisian galleries specialized in this field, in the 70s and 80s: the Gennari, Lacloche and Pascal Morabito galleries. , and Sven. He taught at the School of Applied Arts in La Chaux-de-Fonds from 1977 to 1985. He also made jewelry for the haute couture collections of Peer Spook and Issey Miyake in the 80s and 90s. He received first prize in the international De Beers competition in 1975, like Onelio Vignando before him. The Parisian gallery Naïla de Monbrison, a pioneer for artists' jewelry, organized a monographic exhibition of her jewelry in 1995 and 1997. Her creations are exhibited in the jewelry gallery of the Musée des Arts Décoratifs, rue de Rivoli in Paris. 
Her creations celebrate the poetry and exoticism of unusual materials in jewelry such as wood or raw shells, as well as graphic, refined, almost Nordic shapes.