Natural pearl, emerald and diamond ring, circa 1915.

Natural pearl, emerald and diamond ring. Set centrally with a round natural saltwater pearl in a closed back half drilled setting, approximately 5.5 x 5.6 x 4.5mm in size, further decorated with eight calibré cut natural emeralds in open in open back rubover settings with a combined approximate weight of 0.20 carats, further set with sixteen round eight cut diamonds in open back grain settings with a combined approximate weight of 0.16 carats, flanked further with two round old cut diamonds in open back rubover settings with a combined weight of 0.06 carats. The total approximate diamond weight is 0.22 carats, to an impressive cluster design featuring intricate openwork with millegrain edging, a decoratively pierced gallery and fancy shape open backholing, leading to asymmetric openwork shoulders with a foliate motif, and flowing through to a solid D-shape shank. Tested platinum, circa 1915, accompanied by Gem and Pearl Laboratory report #23145.