Burmese sapphire and diamond cluster ring, circa 1950.
Burmese sapphire and diamond coronet ring. Centrally set with an octagonal emerald-cut natural unenhanced Burmese sapphire in an open back claw setting with an approximate weight of 0.74 carats, flanked to either side with two rectangular baguette cut diamonds in open back channel settings with a combined weight of 0.10 carats, surrounded by eight round old cut diamonds in open back rubover and grain settings with a combined weight of 0.40 carats. The total approximate diamond weight is 0.50 carats, to a raised cluster featuring scalloped edging, an intricately pierced open work gallery and fancy backholing, the raised open shoulders supported by chenier details which gently smooth to a slim D-shape shank. Tested platinum, circa 1950, accompanied by Gemmological Certification Services report #77109-04.