Lot 582. The property of a European princely family. Burmese ruby and diamond brooch. Estimate 100,000 — 150,000 CHF. Lot sold 122,500 CHF. Photo Sotheby's 2012

Of floral design, the open work frame claw-set with oval rubies and highlighted with brilliant-cut and tapered baguette diamonds, signed G. Ernst, Wiesbaden. 

Accompanied by SSEF report no. 64685, stating that the rubies are of Burmese origin, with no indications of heating.

Sotheby's. Magnificent Jewels Geneva | 14 Nov 2012