Art Deco Imperial precious topaz and diamond ring. Set with a natural unenhanced rectangular emerald-cut topaz to centre in an open back corner claw setting with an approximate weight of 15.30 carats, flanked by twenty four round old single cut diamonds of varying sizes in open back grain and millegrain settings with an approximate combined weight of 0.30 carats, to elegant pierced shoulder motifs, atop an ornate scrolling openwork gallery with intricate backholing, conforming to the finger and flowing down to a solid tapered D-shape shank. Tested platinum, circa 1930.
