'Chevalière' ring, René Boivin, circa 1965. Estimate 3,500 — 4,500 GBP. Photo Sotheby's Designed as a polished wooden shank decorated to the front with a sun motif, size M1/2, signed René Boivin, French assay and maker's marks. Accompanied by a certificate...

'Chevalière' ring, René Boivin, 1951. Estimate 3,500 — 4,500 GBP. Photo Sotheby's Designed as a polished wooden shank decorated to the front with a panther motif, size K1/2, signed René Boivin. Bibliography: Cf: Françoise Cailles, René Boivin Joaillier...