A fine pair of ruby, mother-of-pearl and diamond ear clips by BOGH-ART. Photo: Christie's Images Ltd., 2010

Of marquetry design, each mother-of-pearl ear clip inlaid with an oval-shaped ruby weighing 11.40 and 10.17 carats respectively, within a Calibré-cut ruby and diamond foliate surround, the border set with eight marquise-cut diamonds to the scallapoed ruby detail, with maker's presentation case and certificate, 3.0cm long, stamped '750'. With maker's mark for Bogh-Art. Estimate $150,000 - $200,000. Price Realized $290,500

Accompanied by report no. 09-G-1409 dated 14 October 2009 from Gem Tech Lab, Switzerland, stating that the rubies are natural, of Burmese (Myanmar) origin, with indications of thermal treatment (2)

Christie's. Jewels and Watches : The Dubai Sale Including The Fabulous Parures: An Important Private Collection, 27 October 2010, Dubai www.christies.com