Three pairs of opal earrings in yellow gold, consisting of a pair of oval ear studs, each comprising an oval cabochon of precious opal with white background, sub-translucent, displaying 'play-of-colour' optical effect in full-spectrum, approximately measures 10.1 x 7.7 mm in size, rub over set in bevelled collet, backed with peg and butterfly fittings, yellow precious metal marked as '750'; A pair of 18ct gold opal cluster ear studs, comprises four round precious opal with white background, one with a vivid colour range of 'play-of-colour', another mainly showing greens and blues, set together in quatrefoil motif, backed with peg and butterfly fittings, British hallmarked '750', dated 1997, measuring 1.2 cm across head; A pair of 9ct gold drop earrings each comprises a pear-shaped opal cabochon with subtle 'play-of-colour', approximately measuring 9.1 x 6.0 mm, with round and baguette CZ surmount, to peg and butterfly fittings (one deficit), British hallmarked '375', drop length 2.7 cm. Total weight of items 11.7 grams (3).