Antique solitaire jade locket ring. Set to centre with an oval natural unenhanced Burmese jade cabochon in an open back rubover setting with an approximate weight of 4.00 carats, to a heavy twisted design, conforming to the finger, featuring polished edges and open backholing, the integrated shoulders tapering to a solid shank, with gold removable locket rim to reverse. Tested 15 carat yellow gold, marked '1872', circa 1870, accompanied by Gemmological Certification Services report #79190-87.