An Art Nouveau Yellow Gold, Opal and Diamond Ring, in a sculpted openwork asymmetric setting containing one oval cabochon cut white opal measuring approximately 10.70 x 10.40 x 2.30 mm together with five old European cut diamonds weighing approximately 0.80 carat total and one antique oval brilliant cut diamond weighing approximately 0.35 carat total. 3.00 dwts.