An Art Deco natural pearl and diamond bar brooch. Photo Christie's Image Ltd 2013

The two drop-shaped natural pearls, measuring approximately 10.8-21.6 x 15.8 and 10.1-12.3 x 15.4 mm, linked by a single- and circular-cut diamond bar with baguette-cut diamond line detail, mounted in platinum, 1930s, 6.0 cm. Estimate CHF28,000 - CHF48,000 ($30,476 - $52,245). Price Realized CHF35,000 ($38,108)

Accompanied by report no. 69327 dated 6 August 2013 from the SSEF Swiss Gemmological Institute stating that the pearls are natural saltwater pearls

Christie's. MAGNIFICENT JEWELS, 12 November 2013, Geneva