Coral ring, 'Dôme', René Boivin, 1933. Estimate 6,500 — 8,500 GBP. Photo Sotheby's

Of bombé design, decorated with a coral sun motif, size F, signed R. Boivin, French assay and maker's marks, case stamped René Boivin.

Bibliography: Cf: Françoise Cailles, René Boivin Joaillier, Les Éditions de l'Amateur, Paris, 1994, page 151 for an illustration of this ring.

Accompanied by a certificate from Françoise Cailles.

Sotheby's. Fine Jewels, London, 1 dec. 2015, 10:00 AM