Vintage Burmese sapphire and diamond ring. Centrally set with an octagonal emerald-cut natural unenhanced Burmese sapphire in an open back four claw setting with an approximate weight of 5.94 carats, additionally set with an octagonal emerald-cut diamond, D colour, VS2 colour, with a weight of 0.62 carats, in an open back claw setting, and further enhanced by an octagonal emerald-cut diamond, D colour, VS1 clarity, with a weight of 0.58 carats, in an open back claw setting. The total approximate diamond weight is 1.20 carats, to a geometric three stone design with a rectangular pierced gallery and fancy backholing, the raised openwork shoulders leading smoothly through to a solid D-shape shank. Marked 18 carat gold and platinum, English, circa 1950, accompanied by Gemmological Certification Services report #5776-6962 and Gemological Institute of America reports #7232044791 and #1225763766.
