A diamond and gold ring & A diamond and ruby flower brooch, by René Boivin

A diamond and gold ring, by René Boivin. Christie's Image Ltd 2009

Of bombé design, set with a rectangular-cut diamond, weighing approximately 10.49 carats, within a sculpted 18k gold surround, 1950, with French assay mark, (inside ring hoop inscribed 'To M love N Xmas 2000') Signed René Boivin - Est. $100,000 - $150,000

A diamond and ruby flower brooch, by René Boivin. Christie's Image Ltd 2009

Mounted en tremblant, designed as an circular-cut diamond Queen Anne's Lace flower blossom, set with a circular-cut ruby pistil, with circular-cut emerald and sculpted gold leaves and a baguette-cut diamond stem, mounted in platinum and 18k gold, 1938, with French assay marks. Signed René Boivin, G & Co. for Gattle & Co. Est.

Christie's. Jewels: The New York Sale and TheAnnenberg Diamond. 21 October 2009. New York, Rockefeller Plaza www.christies.com