A pair of Art Déco diamond earrings, by Lacloche Frères. Estimate CHF19,000 – CHF28,000 ($19,139 - $28,204). Photo Christie's Image Ltd 2015

Of swirl design, each set with baguette and circular-cut diamonds, 1930s, 2.5 cm, with French assay marks for platinum. Signed Lacloche Frères, no. 1735 

Notes: Lacloche Frères was founded in Madrid in 1875 by four brothers, Fernand, Jules, Leopold and Jacques. Subsequently, they opened branches in San Sebastian, Biarritz and at 15, rue de la Paix in Paris before taking over Fabergé’s London salon in 1920. They were a highly successful jewellery firm, featuring jewellery at the 1925 Exposition Internationale des Arts Décoratifs in Paris. During the 1920s and 30s they were known for their jewellery and objets d’art, decorated with enamels and carved gemstones.

Christie's. GENEVA MAGNIFICENT JEWELS, 10 November 2015, Geneva