Diamond and sapphire ring. Set with one central round old cut diamond in an open back rubover setting with pierced surround with a weight of 1.00 carats, set to top and bottom with vertical single rows of four square step cut natural unenhanced sapphires in open back rubover settings with an approximate total weight of 0.60 carats, all encircled by an ornate pierced bi-lobed bezel with integrated shoulders set with twelve round old cut diamonds in open back grain settings with a total weight of 0.80 carats. The combined approximate diamond weight is 1.80 carats, to a vertical cluster with an openwork gallery supported by cheniers, fancy shaped backholing and on a tapered shank engraved with stylised foliate decoration. Marked platinum, circa 1920.
