From a European princely family. Fine 14.89 carats Burmese ruby and diamond fragment of a jewel, assembled in 1921. Estimate 1,170,000 — 2,140,000 CHF (1,103,775 - 2,018,871 EUR). Photo Sotheby's

Set with a mixed-cut ruby weighing 14.89 carats, within a series of foliate links set with cushion-shaped, circular-cut and rose diamonds, four small diamonds deficient.

Accompanied by Gübelin report no. 11030108, stating that the ruby is of Burmese origin, with no indications of heating, together with appendix letters. 

"The natural ruby... described in the above mentioned Gübelin Gem Lab Report possesses a richly saturated and homogeneous colour. In addition, this remarkable gemstone has been spared of thermal treatment. Such a combination of characteristics is rare in natural Burmese rubies of this size." Excerpt from Gübelin appendix letter, 15 March 2011

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 12 mai 2015, 10:30 AM