Impressive ruby and diamond demi-parure, French. Photo Sotheby's

The necklace set with oval and cushion-shaped rubies, highlighted with brilliant- and marquise-cut diamonds, inner circumference approximately 395mm; the ear clips similarly-set with detachable drops, all mounted in yellow gold, French assay and indistinct maker's marks. Estimate 275,000-455,000 CHF

Accompanied by Gübelin report nos. 11040033 and 11040032, stating that the rubies from the necklace and ear clips are of Burmese origin, with no indications of heating.

Sotheby's. Magnificent Jewels, Geneva | 15 Nov 2011 www.sothebys.com