Adam's Fine Jewellery & Watches September 18th 2018

29 45 AN IMPRESSIVE EARLY 20TH CENTURY OPAL, DIAMOND AND EMERALD RING, CIRCA 1910 The cushion-shaped black opal, approximately 19.68 x 15.56 x 5.6mm, within a frame of single-cut diamonds to an openwork ornate gallery and square-cut emerald shoulders, mounted in platinum, ring size Q € 8,000 - 10,000