Edwardian diamond cluster ring. Set with twenty cushion shape old mine diamonds in open back grain settings with a combined approximate weight of 3.80 carats, to an angular marquise shape cluster design featuring polished scalloped edging, an intricately pierced gallery, and fancy shape open backholing, leading to tri-split shoulders and flowing through to a solid D-shape shank. Marked 18 carat yellow gold and platinum, circa 1905.
