Opal ring, 'Egyptienne', René Boivin, 1970. Estimate 5,500 — 6,500 GBP. Photo Sotheby's

Collet-set with a cabochon opal, the bezel and shoulders decorated with beaded motifs, size L, signed René 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