A LATE 19TH / EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING

A LATE 19TH / EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING
The central pear shaped sapphire, weighing approximately 4.23 carats, within a cluster surround of old-cut diamonds with ribbon bow surmount set with old and rose-cut diamonds to the pierced gallery and tapering reeded hoop, circa 1900, ring size L, in deep burgundy leather case with gold tooled initials A.F.M to the lid
Accompanied by report no. 92907 from the SSEF Swiss Gemological Institute dated 29 June 2017 stating that the sapphire is of Burmese origin, with no indications of heating