A striking solid opal and diamond set vintage suite, 18ct yellow gold, handcrafted as an Art Nouveau inspired 1960's drop collier with matched earrings. Featuring a solid oval cabochon crystal opal of good spectral colours, measuring 43 x 13 x 5 mm, 12.90ct, claw set, flanked by bars of brilliant cut diamonds, the opal connected between the split drop necklace, designed as short twisted gold bars, connected by individual oval cabochon crystal opals, small in size, each open backed, merging to a single chain of matched twist link