A PAIR OF OPAL AND DIAMOND CLUSTER EARRINGS in 18ct white gold, each set with a cabochon opal in a

A PAIR OF OPAL AND DIAMOND CLUSTER EARRINGS in 18ct white gold, each set with a cabochon opal in a cluster of round brilliant cut diamonds, suspending a further opal and diamond cluster, stamped 750,

A PAIR OF OPAL DOUBLET AND DIAMOND DROP EARRINGS in 18ct white gold, each set with a cabochon opal doublet within a border of round cut diamonds, accented by single cut diamonds in fleur de lis motifs

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal of 9.50 carats in a border of round brilliant cut diamonds, the band accented by further diamonds all totalling 0.65 carat

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal in a cluster of round cut diamonds, British hallmarks, size H / 4, 5.2g.

A collection of gem-set jewellery to include a pair of 18ct gold emerald and diamond set cluster earrings, a pair of opal and diamond cluster earrings, unmarked; two more pairs of opal earrings, unmar

A PAIR OF OPAL AND RUBY DROP EARRINGS in 18ct gold, each comprising an cabochon opal in a cluster of round brilliant cut diamonds suspending a step cut ruby and further opal and diamond cluster, stamp

PAIR OF OPAL AND DIAMOND EARRINGSPair of 14k yellow gold cluster clip-on earrings set with ten (10) pear-shaped cabochon cut opals (approx. 5.8mmx 4mm) and fourteen (14) round brilliant cut diamonds (

A pair of women's vintage estate elegant drop dangle earrings crafted of 14k white gold and featuring a genuine round gray pearl, round cut diamonds, and cabochon set fire opal gemstones. Earrings hav

An 18ct gold opal and diamond novelty brooch, and an 18ct gold gem-set cluster ring. The brooch designed as a pair of sunglasses with oval opal cabochon lenses and brilliant-cut diamond bridge, the ri

A group of Early 20th Century opal and fourteen karat gold jewelryincluding a pair of floriform oval jelly opal cluster stud earrings; two rings set with oval opal cabochons or old mine-cut diamonds.

A PAIR OF DIAMOND CLUSTER EARRINGS in 18ct white gold, each set with a cluster of round brilliant cut diamonds totalling 1.0-1.1 carats, stamped 750, 1.0cm, 2.8g.

A PAIR OF SAPPHIRE AND DIAMOND CLUSTER EARRINGS in 18ct white gold, each set with an oval cut sapphire in a cluster of round brilliant cut diamonds, the sapphires both totalling 3.56 carats, the diamo

A PAIR OF EMERALD AND DIAMOND CLUSTER EARRINGS in 18ct white gold, each set with an oval cut emerald in a cluster of round brilliant cut diamonds, partial British hallmarks, 0.7cm, 1.4g.

A PAIR OF EMERALD AND DIAMOND CLUSTER STUD EARRINGS in 18ct white gold, each set with an oval cut emerald in a radiating border of round cut diamonds, the emeralds both totalling 1.14 carats, stamped&

A FINE OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a cabochon opal of 9.40 carats accented by round cut diamonds, stamped Au750, pendant 3.7cm, chain 45.0cm, 5.4g.

AN OPAL AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cabochon opal in a cluster of rose cut diamonds, French import mark, size O / 7, 3.9g.

A PAIR OF BLUE TOPAZ AND DIAMOND DROP EARRINGS in 18ct white gold, set with a cabochon blue topaz within a border of round brilliant cut diamonds, with further diamonds to the hoops, full British hall

AN OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a pear shaped cabochon opal in a border of round brilliant cut diamonds, suspended from a chain, full British hallmarks, pendant 2.3cm

AN ANTIQUE OPAL AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a cabochon opal in a cluster of rose cut diamonds, stamped 18CT & PLATINUM, size M / 6.25, 2.7g. 

AN OPAL AND DIAMOND DRESS RING in 18ct white gold, set with a pear shaped cabochon opal within a twisted mount, accented by round cut diamonds, stamped 18kt, size Q / 8, 8.6g.

AN OPAL AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cabochon opal accented by round brilliant and princess cut diamonds, the diamonds all totalling 1.2-1.4 carats, British h

A PAIR OF OPAL AND DIAMOND DROP EARRINGS in 14ct yellow gold, each set with a round cabochon opal suspending a row of rose cut diamonds terminating in a pear shaped cabochon opal, stamped 14k, 5.0cm,

A PAIR OF OPAL DROP EARRINGS in 18ct yellow gold, each set with a row of five cabochon opals, hook fittings, stamped 18K, 6.0cm, 2.4g.

A PAIR OF VINTAGE TURQUOISE AND DIAMOND CLIP EARRINGS in 18ct yellow gold and white gold, set with round cabochon turquoise and round brilliant cut diamonds, stamped 18K, 2.2cm, 10.2g.