Fine Jewels And Watches May 2017
拍品 1935:
One loose cushion-cut color-changed sapphire weighing 12.34 carats
Accompanied by a report from the Gübelin Gem Lab, stating that the 12.34 carat natural sapphire shows color-change in different lights: from violetish-blue in daylight to violetish-purple in incandescent light, originates from Sri Lanka (Ceylon) and has no indications of heating, report no. 16020180, dated 25th February 2016
