Platinum Ladies Ring with 4.02ct Black Opal and 0.72tcw Adjacent DiamondsRiverside Galleries4.5(197)$504 days Left
Platinum GIA Certified 5.48ct Blue Black Opal Ring with Baguette DiamondsBidhaus4.2(836)$1002 days Left
Platinum Setting with 0.77ct Black Opal and 0.26ct Diamond Ladies RingRiverside Galleries4.5(197)$504 days Left
14K WHITE GOLD RING OVAL SHAPE, SAPPHIRES AND 0.28CTS OF DIAMONDS SIZE: 7Modern Jewelry4.5(203)$810Feb 08, 2026
1.25 CT Australian Black Opal Ring in Platinum with Diamonds sz 6.25Gallery 634.6(246)$130(2 bids)6 hrs Left
Platinum Setting with 0.77ct Black Opal and 0.26ct Diamond Ladies RingRiverside Galleries4.5(197)$501 day Left
Sold1970'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
SoldPlatinum Black Opal Diamond RingMETAL: Platinum. MEASUREMENTS: Ring size - 7.75, ring top is 15.6mm wide. GEMSTONES: Black opal - 15.6mm x 12mm x 5.1mm (stone has small chips/abrasions). Diamonds approx. 0.50ctw. MARKED: with polishSee Sold Price
SoldVintage Platinum 3.83ct Black Opal Diamond RingVintage Platinum Black Opal & Diamond Ring - 3.83 ct Center - G/VS Halo - Rare Collector's Piece A museum-grade vintage platinum estate ring centering on a 3.83-carat natural black opal of exceptionalSee Sold Price
SoldVintage Platinum Natural Black Opal Diamond RingVintage Platinum Black Opal & Diamond Ring - 1.48ct Center - 0.70ct VS/G Accents - Rare Estate Piece A refined vintage platinum ring showcasing a 1.48-carat natural black opal in an elongated oval cabSee Sold Price
SoldTiffany & Co. Platinum, Black Opal and Diamond Ring, Shank size: 8Tiffany & Co. Platinum, Black Opal and Diamond RingCentered with one oval cabochon black opal measuring approximately 12.25 x 10.30 x 5 mm, surrounded by twelve round brilliant-cut diamonds weighing aSee Sold Price
SoldGold, Platinum, Black Opal and Diamond Ring18 kt., one oval black opal ap. 7.00 cts., 7 round and 17 marquise-shaped diamonds ap. 3.00 cts., signed EZ, ap. 9.2 dwts. Size 6 3/4. Opal: dark blue with strong green and blue flashes,See Sold Price
SoldPlatinum, Black Opal and Diamond RingOne oval black opal ap. 7.00 cts., 10 round diamonds ap. .30 ct. Size 7 1/4. Black opal: overall medium deep slightly grayish violetish blue, green, yellow and red flashes, moderate crazing, good polSee Sold Price
SoldPlatinum, Black Opal and Diamond RingPlatinum, Black Opal and Diamond Ring, center oval cabochon opal, wt. approx. 2.53 ct.; bezel and shoulders set with 44 round brilliant cut diamonds, total wt. approx. 0.68 ct.; size 6.75; GGA report.See Sold Price
SoldPlatinum 2.36 ct Black Opal & Diamond Halo RingVintage Platinum Black Opal & Diamond Halo Ring - 2.36 ct Center - 0.56 ct VS/G Diamonds - Estate A rare and captivating vintage ring, this piece features a 2.36-carat natural black opal, set in solidSee Sold Price
SoldPlatinum 5.40 ct Black Opal & Diamond RingPGL Digital Appraisal Retail Replacement Value $13,995 Natural opal weighing 3.70 carats Natural Diamonds Carat Weight: 1.70Color Grade: H - I Clarity Grade: SI1 - SI2 Size 5.75 366869-2491 NOTE: PGLSee Sold Price
SoldPlatinum 16.04 ct Black Opal & Diamond RingPGL Digital Appraisal Retail Replacement Value $10,740 Natural opal weighing 15.91 carats Natural Diamonds Carat Weight: .13Color Grade: H-I Clarity Grade: SI1-SI2 Size 6.75 370710-2151 NOTE: PGL ApprSee Sold Price
SoldPlatinum 1.68ct Black Opal Diamond Ballerina RingMETAL: Platinum. MEASUREMENTS: Ring size 5.25, top is 16mm x 15mm. GEMSTONES: Black opal - 1.68ct, Diamonds 1.02ctw. MARKED: pt900, 1.68, 1.02. WEIGHT:6.8 grams. Gemstones have not been graded for colSee Sold Price
SoldGIA 1.88ct Natural Black Opal Platinum Diamond RingMetal : Platinum Designer : Not Signed Gemstone : GIA natural black opal - 1.88ct, measures 12.03 x 9.31mm. Diamonds 0.67ctw. Measurements : Ring size 6, top is 14mm x 16mm. Marked: : ptSee Sold Price
SoldBlack Opal Platinum Diamond Ring2.19 very fine Australian black opal with platinum settings and 0.44 Diamonds F-VSSee Sold Price
SoldPLATINUM OPAL & DIAMOND RINGIntroducing the Platinum (PLAT) Natural Black Opal and Diamond Ring by Oscar Friedman, a symbol of exquisite beauty and luxury. This stunning ring features an oval cabochon-cut natural black opal gemsSee Sold Price
SoldPlatinum 4.90ct Lightning Ridge Black Opal & 1.08ctw Diamond Ring, 6.254.90ct Cabochon Oval Lightning Ride Black Opal with excellent play of color & multiple displays of patterns In Platinum setting with 1.08ctw Near-colorless round brilliant natural diamond halo SizSee Sold Price
SoldBlack Opal, Diamond, Platinum Ring, Ayres The rBlack Opal, Diamond, Platinum Ring, Ayres The ring features a pear-shaped black opal cabocSee Sold Price
SoldBlack Opal, Diamond, Platinum, Gold Ring The riBlack Opal, Diamond, Platinum, Gold Ring The ring features an oval-shaped black opal cabocSee Sold Price
SoldPlatinum Diamond Black Opal RingMETAL: Platinum. GEMSTONES: Diamonds, Black opal - 25mm x 16.8mm. (opal has fine line scratches). MEASUREMENTS: Ring size 7. MARKED: LRW, PLAT. WEIGHT: 9.9 grams. Gemstones have not been graded for coSee Sold Price
Sold5.90ct Black Opal, 2.00ctw Diamond Platinum Ring5.90ct Black Opal, 2.00ctw VS2-SI1/G-H Diamond Solid Platinum Ring - This beautiful ring was finely crafted of solid platinum and boasts a 5.90ct (approximate) genuine black opal which displays an exqSee Sold Price
Sold3.50ct Black Opal, 2.00ctw Diamond & Platinum Ring3.50ct Black Opal, 2.00ctw SI1-SI2/G-H Diamond and Solid Platinum Ring - This ring is crafted of solid platinum and boasts an approximately 3.50ct black opal which displays beautiful flashes of greenSee Sold Price
5.85ct Black Opal, 0.85ctw Diamond Platinum Ring5.85ct Black Opal, 0.85ctw VS1-VS2/G-H Diamond Solid Platinum Ring - This lovely ring was finely crafted of solid platinum and is decorated with a 5.85ct (approximate) black opal which displays a blacSee Sold Price
Sold2.15ct Black Opal, 0.95ctw Diamond Platinum Ring2.15ct Black Opal, 0.95ctw VS1-VS2/G-H Diamond Solid Platinum Ring - This lovely ring was finely crafted of solid platinum and boasts a 10.5mm round cut black opal which displays beautiful vivid flashSee Sold Price
SoldGIA Natural Black Gray Opal Diamond Platinum RingTitle: GIA Natural Black Gray Opal Diamond Platinum Ring Description:A huge mid-century crossover ring with several white and clean diamonds and a large back or gray natural opal with no treatment! ThSee Sold Price
