Art Deco sapphire and diamond ring. Centrally set with a rectangular step cut natural unenhanced sapphire in an open back half rubover setting with an approximate weight of 1.00 carats, flanked by two square step cut diamonds with a combined approximate weight of 0.60 carats, to a graduating three stone design, featuring intricately pierced geometric openwork gallery and fancy backholing, with raised sloping shoulders which flow down to a solid flat shank. Marked platinum, circa 1925, accompanied by Gemmological Certification Services report #79177-38.
