Pair of Diamond, Opal & Black Onyx Inlay, 14k Yellow Gold Stacking Rings. Each featuring one emerald-cut diamond weighing approximately 0.15 ct., accented by opal and black onyx inlay, set in a 14k yellow gold squared ring mounting. Total diamond weight for the pair is approximately 0.30 cttw. {Sizes: 7 1/2 and 7 3/4, Gross Weight: 8.2 dwts}