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Lot 68. Platinum and Diamond Ring, René Boivin, France. Estimate10,000 — 15,000 USD. Photo Sotheby's

Centering a row of five old European-cut diamonds, the mounting accented by numerous smaller old European-cut diamondssize 4, with French assay and workshop marks. 

Accompanied by a Certificate of Authenticity from Françoise Cailles.

Sotheby's. Fine Jewels New York | 10 Jun 2016, 10:00 AM