Sold2022A FINE ART DECO BLACK OPAL AND DIAMOND RING in white gold, set with a pear shaped cabochon opalA FINE ART DECO BLACK OPAL AND DIAMOND RING in white gold, set with a pear shaped cabochon opal accented by round cut diamonds, no assay marks, size I / 4.5, 3.5g.See Sold Price
Sold2022AN OPAL, ENAMEL, AND DIAMOND RING in 9ct gold, set with a round cabochon opal in a border of blackAN OPAL, ENAMEL, AND DIAMOND RING in 9ct gold, set with a round cabochon opal in a border of black enamel, accented by round brilliant cut diamonds, full British hallmarks, stamped 375, size O / 7, 2.See Sold Price
Sold2022AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal of 9.50 carats in aAN 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 caratSee Sold Price
Sold202414 kt White Gold, Black Opal and Diamond Ring14 kt White Gold, Black Opal and Diamond Ring. One 14 kt white gold ring containing 1 oval black opal cabochon and 32 round single cut diamonds. The opal measures 9.05 mm L x 7.41 mm W x 3.54 mm D, anSee Sold Price
Sold2022A BLACK OPAL AND DIAMOND PENDANT AND CHAIN in 18ct yellow gold, the pendant set with a pear shapedA 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 brillianSee Sold Price
Sold20161970's Platinum Black Opal & Diamond Ring1970's Platinum Black Opal & Diamond Ring. The ring is centrally set with a large oval cabochon cut black peacock opal. It exhibits a fine blue to green harlequin play of color. It weighs approx. 5.99See Sold Price
Sold2023An Art Deco single stone black opal ring,An Art Deco single stone black opal ring, An Art Deco single stone black opal ring, with diamond set shoulders. A circular tallow cabochon cut black opal, milligrain set to each shoulder, to a ridgedSee Sold Price
Sold2017BLACK OPAL, DIAMOND & WHITE GOLD RINGAn oval black opal with board blue/green color play, 12.10 x 9.20 mm, set horizontally in RBC diamond pave gallery, hoop, 1.65 cts. TW. 18k. Size 4 1/2. 4.0 dwt.See Sold Price
Sold2021ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURYANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY mounted in yellow gold, claw-set with an oval black opal measuring 14.8 x 10.5mm,and weighing approximately 3.36 caarts, within a border of circSee Sold Price
Sold202214KT WHITE GOLD BLACK OPAL RING (5.75 G)Gorgeous 14kt white gold black opal fashion ring. The ring features one (1), four prong set, oval cabochon opal set accented with bypass white gold feathers. The opal measures approx. 7.85 x 5.25mm, hSee Sold Price
Sold2022A gold single stone black opal ring,A gold single stone black opal ring, A gold single stone black opal ring, a round cabochon black opal, damaged, rub set to tapering, textured, flat section band, tested as approximately 18ct gold, 11.See Sold Price
Sold2016A Black Opal Ring.A Black Opal Ring. 14 karat white gold mounting containing one round cabochon black opal surrounded by one row of 16 round diamonds Size: 5.5 Wt: 3.8 gramsSee Sold Price
Sold201710 ct Lightning Ridge Opal Diamond Ring10 ct. Lightning Ridge opal and diamond dinner ring set in 14K white gold mounting. Oval black opal measuring 13 mm x 10 mm x approx. 3.7 mm and containing 12 round brilliant diamonds with a total weiSee Sold Price
Sold2015An Opal and Diamond Ring.An Opal and Diamond Ring. 14 karat yellow gold ring contains one prong set oval cabochon opal which is aurrounded by ten prong set round diamonds, which are surrounded by a single band of black enamelSee Sold Price
Sold2019WHITE OPAL & ROSE CUT DIAMOND RINGDesigned as a central oval cabochon opal (12.3 x 7.7 mm) in a border of rose cut diamonds set in 14k gold; size 3-1/2, 3.7gSee Sold Price
Sold2016A Lady's Assorted Gem Stone Rings14K yellow gold ring, with cluster of rubies and diamonds, sz 6, 2) 10K yellow gold amethyst prism ring, sz 6.5, 3) 14K yellow gold opal prong set ring, sz 6.5 and 4) 10K white gold black onyx and cubSee Sold Price
Sold202218KYG Black Opal and Diamond Ring18KYG Black Opal and Diamond Ring size 11, bezel set oval cabochon black opal doublet approx. 13.0mm x 8.5mm, 10 prong set mixed sized round brilliant cut diamonds approx. .30cttw., stamped and testedSee Sold Price
Sold2022AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cabochon opal in a cluster of roundAN 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.See Sold Price
Sold2022A FINE OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a cabochon opal of 9.40 caratsA 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.See Sold Price
Sold2023A BLACK OPAL AND DIAMOND PENDANT in 18ct yellow gold, set with a cabochon black opal of 3.40 carats,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.See Sold Price
Sold2022AN OPAL AND DIAMOND RING in 18ct yellow gold, set with a cabochon opal in a border of single cutAN 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.See Sold Price
Sold2024Antique Black Opal Diamond white gold ring with GIA reportVintage from the 1920s Ships from New York! Shorter shipping distances are kinder to the planet Ordering items closer to you is more likely to reduce your purchase's carbon footprint. Materials: BlackSee Sold Price
Sold2020AN OPAL AND DIAMOND DRESS RING in 18ct white gold, setAN 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.See Sold Price
Sold2022AN OPAL AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cabochon opalAN 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 hSee Sold Price
Jun 15Crescent City Auction Gallery14K White Gold Ladies' Black Opal and Diamond Ring, Total Diamond Wt.- app. 1.5 carats, Gold Wt.-$850
7 days LeftElmwood'sA FINE OPAL AND DIAMOND SWEETHEART RING in yellow gold and silver, designed to depict a heart£1,200
Jun 14Harrington's Auctioneers & AppraisersGem Lab Certified 14k White Gold,Black Opal & Diamond RingCA$800
7 days LeftElmwood'sAN ANTIQUE OPAL, DIAMOND AND ENAMEL BROOCH in platinum and yellow gold, set with a rectangular£1,800
21 hrs LeftElmwood'sAN OPAL, AQUAMARINE AND DIAMOND PENDANT NECKLACE in 18ct white gold, the pendant set with an£350
15 hrs LeftSeized Assets AuctioneersEstate FINE 14K Gold 3.81 ctw Cabochon Opal Round Baguette Diamond Cocktail Ring$1(1 bid)
5 days LeftFederal Assets AuctioneersEstate FINE 14K Gold 3.81 ctw Cabochon Opal Round Baguette Diamond Cocktail Ring$1