18CT GOLD BROOCH SET WITH OPAL

AN ANTIQUE OPAL AND DIAMOND BAR BROOCH in 18ct gold, set with a central oval cabochon opal between two old cut diamonds, with further rose cut diamonds to the bar, French import marks for 18ct gold, 3

A BOULDER OPAL AND PINK SAPPHIRE BROOCH / NECKLACE in 18ct gold, set with a central polished boulder opal of 39.0mm in a border of round cut pink sapphires, on a black cord necklace, clasp stamped 750

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 RETRO CITRINE BROOCH AND EARRINGS SET in 18ct rose gold, the brooch set with an octagonal step cut citrine in a scrolling mount, the earrings each set with an octagonal step cut citrine, the citrine

Antique Victorian Opal, diamond, enamel, and gold brooch Set with cabochon opals and rose-cut diamonds, in a swirling surround of black enamel; 1880s Yellow gold 2.75 x 1.25 in; Gross weight 12.0 dwts

AN OPAL AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an opal cabochon between two old cut diamonds, stamped 18, size G / 3, 2.3g.

VICTORIAN 18CT GOLD BIRD WITH NEST brooch set with pearls and ruby and heart suspension 7.6g inc

14k yellow Gold Victorian Brooch Set with Single Opal Cabochon: Stunning brooch weighing 10.5 grams, set with single oval opal cabochon. Overall measurement is 2" in length.

An 18ct gold ring set with an opal cabochon flanked by diamonds. Ring size approx. Q

Lilly Fitzgerald Opal, seed pearl, and 22k gold brooch Set with a black opal plaque, seed pearls, and gold spheres 22k yellow gold With maker's mark for Lilly Fitzgerald 1 x 1 1/8 in; Gross weight

18ct yellow gold & platinum brooch, collet-set with 3x brilliant-cut diamonds, G colour, VS2, central diamond approx 0.12ct. Other two 0.08ct each. 3.8 grams, 5.7cm.

Set with opals, rubies and seed pearls. The crescent rose gold brooch is set with fiery opals. unmarked for purity these both are 14k gold tested. 3.9 dwt . Ring size 8 1/4. Brooch is 1 3/16" wide. Co

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 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 ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, stamped 18ct, size N / 6.75, 4.2g. 

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, inscribed JJ - H.B MCK 28/12/20, partial British hallmarks, size M / 6.25,

AN ANTIQUE OPAL AND DIAMOND RING, 19TH CENTURY in 18ct yellow gold, set with two cabochon opals and old cut diamonds, British hallmarks for Chester, 1898, size O / 7, 2.8g.

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with a cabochon opal in a border of single cut diamonds, stamped 18ct, size M / 6, 2.5g.

A VINTAGE OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by trios of round cut diamonds, stamped 18ct, size S.5 / 9.25, 4.1g.

AN ANTIQUE VICTORIAN FIVE STONE OPAL RING, 1881 in 18ct yellow gold, the opals set to a carved scroll gallery, full British hallmarks for Birmingham 1881, size M1/2 / 6.25, 4.3g.

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.

AN ANTIQUE EDWARDIAN OPAL AND DIAMOND RING in 18ct yellow gold, set with three cabochon opals punctuated by pairs of old cut diamonds, full British hallmarks for Chester 1904, size R1/2 / 8.75, 4.0g.&

A VINTAGE OPAL AND DIAMOND RING in 18ct yellow gold, set with a cabochon opal between two old cut diamonds, stamped 18ct, size L / 5.5, 3.6g.

A 9ct white gold bar brooch set with central oval opal cabochon. The opal approx. 3/4" long, the brooch 2" wide overall.