AN EARLY 20TH CENTURY SAPPHIRE RING

AN EARLY 20TH CENTURY SAPPHIRE RING
The circular-cut sapphire weighing approximately 3.65 carats, between old-cut diamond three-stone shoulders, raised on a fluted hoop, ring size M, French assay marks for platinum
No.380
Accompanied by report no.75939 dated 20 August 2014 from the SSEF Swiss Gemmological Institute, stating that the sapphire is natural, shows no indications of heating, origin Burma; together with report no.13100297 dated 7 November 2013 from Gubelin Gemlab, stating the sapphire is natural, with no indications of heating, origin Burma