AN OPAL, DIAMOND AND PEARL PENDANT in yellow gold, set to the centre with a cabochon opal, within a

AN OPAL, DIAMOND AND PEARL PENDANT in yellow gold, set to the centre with a cabochon opal, within a cluster of alternating old cut diamonds and pearls, the bail set with a further old cut diamond, the

AN ANTIQUE OPAL, RUBY AND PEARL PENDANT in 9ct yellow gold, in floral design, set with a round cut ruby in a cluster of lozenge shaped cabochon opals, within a border of alternating pearls and round c

A BLACK OPAL AND DIAMOND PENDANT in 18ct yellow gold, set with a cabochon black opal of 3.40 carats, the bail accented by three round cut diamonds, stamped 18K, 2.2cm, 1.4g.

AN OPAL AND DIAMOND RING in yellow gold, set with an oval cabochon opal doublet within a border of single cut diamonds, no assay marks, size Q / 8, 5.3g.

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, set with a central cabochon opal within a scrolling openwork mount set with old cut diamonds, the diamonds all totalling 5.3-5.5 carats, n

AIG Certified 14K yellow gold cast and assembled natural ethiopian fire opal and diamond pendant with 14K yellow gold cable chain. Bezel set pear Cabochon cut opal with intertwining diamond accented b

AN OPAL AND DIAMOND CLUSTER DRESS RING in yellow gold and silver, set with an oval cabochon opal within a border of old cut diamonds, no assay marks, size N / 6.5, 4.6g.

AN OPAL AND DIAMOND DRESS RING in high carat yellow gold and silver, set with an oval cabochon opal within a border of rose cut diamonds, with stylised decoration to the band, unmarked, size N / 7, 3.

NO RESERVE - AN OPAL CHARM / PENDANT in 10ct yellow gold, designed as Australia, set to the centre with a cabochon cut opal, stamped 10K, 1.6cm, 0.8g. 

14K yellow gold rope chain hung with a 14K yellow gold pendant having a centered prong set cabochon opal surrounded by a diamond halo with diamond accents on the bail. Chain stamped QCD 14K, pendant 1

A BLACK OPAL AND DIAMOND PENDANT AND CHAIN in 18ct yellow gold, the pendant set with a pear shaped cabochon black opal in a border of round brilliant cut diamonds, accented by a further round brillian

14 kt. White Gold, Yellow Gold, Opal and Diamond Pendant on 14 kt. Gold Chain, center bezel set oval cabochon cut opal, wt. approx. 11.06 cts., 21.53 x 7.28 mm; bezel and link with 37 round brilliant

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, formed of a trio of flower motifs, each set at the centre with a round cabochon opal, accented in the petals by rose cut diamonds, unmarke

Ladies 14kt yellow gold opal and diamond pendant featuring various sizes of prong set oval cabochon cut opals and displaying green and orange fire. Accented with a circle of prong set round diamonds w

Antique 14kt Yellow Gold Sword w Opals & Pearls. Necklace pendant. Set with cabochon opals and seed pearls. Measures nearly 3.5 inches in length. Sword tests at 14kt gold, bail is added.

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with a round cut diamond within a cluster of four cabochon opals, no assay marks, size N / 6.5, 5.4g.

NO RESERVE - AN ANTIQUE ART NOUVEAU DIAMOND AND OPAL BAR BROOCH in 15ct yellow gold, set with an old cut diamond and an opal cabochon within two scrolling bars, stamped 15, 4.0cm, 3.9g.

A 14kt Yellow Gold, Opal and Seed Pearl Pendant/Brooch, Set with one cabochon cut opal gemstone, approx. 9mm x 7mm, approx. 1 ct. Also set with twelve round and oval cut opals, approx. 0.02-0.20 pts.

14 Karat yellow gold pendant bezel set with one oval cabochon cut Sugar-treated Opal, approximately 69.07 carats, accented with 18 full cut round Diamonds [H/VS], approximate total weight 0.54 carats

AN ANTIQUE OPAL AND DIAMOND DRESS RING, 19TH CENTURY in 18ct yellow gold, set with a central round cabochon opal between two kite shaped cabochon opals, the central opal within a border of old cut dia

Fourteen-Karat Yellow Gold, Black Opal and Diamond Pendant, in a modern design and bezel-set with an oval cabochon black opal, with an approximate weight of 5.75 carats, and two round brilliant-cut di

A Victorian Opal, Seed Pearl, And 10 Karat Yellow Gold Slide Pendant. Containing eight seed pearls and five cabochon opals. Set on a Victorian gold filled dual chain. Together with five additional Vic

Large oval 14K yellow gold brooch with hidden bail on back to convert to a pendant, set with large white opal cabochon and the foliate frame set with brilliant cut white diamonds, height 2", width 1.7

14 kt. Yellow Gold, Opal and Diamond Pendant/Brooch Necklace , central oval cabochon opal, wt. approx. 7.00 cts.; pierced filigree surround set with 38 round cut diamonds, total wt. approx. 2.00 cts.;