Lot 2. A set of diamond, natural pearl and gold 'Passementerie' jewelry, by René Boivin. Estimate USD 20,000 - USD 30,000. Price Realised USD 35,000 © Christie's Images Ltd 2016. 

Comprising an old and rose-cut diamond brooch of scroll design, each terminal suspending old-cut diamond and natural pearl drops, measuring approximately 8.67 mm and 8.85 x 8.50 mm, to the articulated circular-cut diamond tulip cap; and a pair of ear clips en suite with natural pearls, measuring approximately 8.10 and 8.14 mm. 2 1/8 ins. (brooch), 1 3/8 ins. (ear clips), with French assay marks for 18k gold, in a René Boivin gray suede fitted case. With maker's marks

Accompanied by a letter from Françoise Cailles confirming authenticity 

With report nos. 2175947102 and 5172946988 dated 27 October 2016 from the GIA Gemological Institute of America stating that the pearls are natural, saltwater pearls with no indications of treatment

The Collection of Robert and Sylvia Olnick  

Literature: Cf. F. Cailles, René Boivin: Jeweler, Paris, Éditions de l’Amateur, 1994, p. 239

Christie's. Magnificent Jewels, 7 December 2016, New York, Rockefeller Plaza