Reserve not met No Image Lot 521 A platinum ring, set with an oval opal cabochon, within a halo of diamonds, opal approx 1.05ct, 521A platinum ring, set with an oval opal cabochon, within a halo of diamonds, opal approx 1.05ct, Clarke's Auctions at Semley A platinum ring, set with an oval opal cabochon, within a halo of diamonds, opal approx 1.05ct, approx UK size H. Add to watchlist Timed