Platinum Setting with 3.33ct Opal and 0.55ct Diamond Ladies RingRiverside Galleries4.5(198)$50(1 bid)5 days Left
14K WHITE GOLD RING WITH 1CT OPAL AND 0.66CTS DIAMONDS (SIZE: 6) 3.3 GRAMSModern Jewelry4.5(203)$1,475Feb 22, 2026
14K WHITE GOLD RING SET WITH NATURAL OPAL AND 0.06CTS DIAMONDS SIZE: 6.25 3.3GModern Jewelry4.5(203)$6505 days Left
Exquisite Platinum Opal 3.50 Ct Diamond Ring with 24 G-H DiamondsMynt Auctions4.4(822)$100Feb 12, 2026
Vintage Platinum Opal Ring, Sz 5.5, 5.26g Total Wgt - 90% Platinum + 10% IridiumVintage Platinum Opal Ring, Sz 5.5, 5.26g Total Wgt - 90% Platinum + 10% IridiumSee Sold Price
SoldLovely Platinum Opal Ring With Diamonds (Quality Assessment Included)Lovely Platinum Opal Ring With Diamonds (Quality Assessment Included)Size (5.75) split tapered shank ring with an oval opal cabochon center stone (16.9 x 13.33 x 4.8mm - 7.02ct tgw - calculated - baseSee Sold Price
SoldTiffany & Co. Vintage 14K Gold & Platinum Opal Diamond RingVintage Tiffany & Co. 14K yellow gold and platinum ring, ring size approx. 6.5, centered by a large oval cabochon opal exhibiting exceptional play-of-color with vivid flashes of green, orange, red, anSee Sold Price
SoldPlatinum Diamond Opal RingPlatinum Weight 8.79gr 1.2”x1.2” Diamond Approx 4ct Opal 10ct Ring Size 7See Sold Price
SoldPlatinum Diamond Opal RingMETAL: platinum. GEMSTONES: opal-5.86ct, diamonds-0.792ctw. MEASUREMENTS: ring size 6.25. Ring top is 17.5mm at widest oint. MARKED: Pt900 5.86 D 0.792. WEIGHT: 12 grams.Gemstones have not been gradedSee Sold Price
SoldMid Century Platinum Diamond Opal RingBlack opal surrounded by baguette and brilliant cut diamonds in a floral motif. Opal 6.24 carats, diamonds 1.79 ctw. Ring measures 7/8 x 1 x 1 1/4 T. Weight 14g. Excellent condition.See Sold Price
SoldArt Deco Platinum, Opal & Diamond RingArt Deco Platinum, Opal & Diamond Ringcentered on a prong set, oval black opal (14.97 x 10.48 x 5.03 mm) with three single cut diamonds on either side weighing approximately .11 total carat (H-I colorSee Sold Price
SoldPlatinum Diamond Opal RingPlatinum Weight 10.18g Diamond Opal Ring Size 6.5 Measurements 1.23”x0.79” See Sold Price
SoldPlatinum Diamond Opal RingPlatinum Weight 4.9gr Diamond Approx 0.35ct VS1-HÊ Opal Ring Size 7 1/4 Measurement 0.7Óx0.7ÓSee Sold Price
SoldPlatinum Opal Diamond RingPlatinum Weight 7.10g Opal Approx. 1.12ct Diamond Approx. 0.67ct RingSee 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 Opal Diamond RingPlatinum Weight 7.1g Opal Approx. 7ct Diamond Approx. 2ct RingSee Sold Price
SoldPlatinum natural opal ring size 7Platinum natural opal ring with diamonds. Appraisal value $10,540. Ring size 7.See Sold Price
SoldLadies Victorian Era 14k Platinum Opal & Diamond RingLadies antique Victorian era Opal and Diamond ring. Crafted of 14k gold and platinum. Set with a stunning Opal center stone measuring 11.6mm x 8.3mm. Surrounded by a halo of 18 European cut Diamonds wSee Sold Price
SoldPlatinum Diamond Opal RingMetal Content: Platinum.Weight of Item: 8 grams.Size: Ring size 6, ring top - 16mm x 15mm.Gemstone: Diamonds. Opal 2.94( stone is slightly loose in the setting).Carat Weight: approx. 0.40ctw.Stamp: PtSee Sold Price
SoldVintage Platinum Band Opal Ring, 5.26g Total Wgt - Sz 5.5 ,90% Platinum + 10% Iridium Band (AcidVintage Platinum Band Opal Ring, 5.26g Total Wgt - Sz 5.5 ,90% Platinum + 10% Iridium Band (Acid Tested Band)See Sold Price
SoldPlatinum Opal Diamond RingPlatinum Opal Diamond Ring, featuring one heart shaped opal cabochon weighing approx. 2.30 carats, further adorned with 12 old European cut diamonds weighing a total of approx. 0.80 carat, marked: "PLSee Sold Price
SoldPlatinum Diamond Opal RingMETAL: platinum. GEMSTONES: diamonds-0.38ctw, opal-0.63ct. MEASUREMENTS: ring size 4. Ring top is 11.5mm at widest point. MARKED: Pt900 038 063. WEIGHT: 6.9 grams.Gemstones have not been graded for coSee Sold Price
SoldPlatinum, Opal & Diamond Ring 7.49ct, 10.5 Grams Jewelry Gemstone Natural Australian Diamondssize: 4, weight: 10.5 grams, material: platinum, gemstones: Australian opal: 7.35ct diamonds: 0.13ctw SI clarity G-H colorSee Sold Price
SoldAntique 18k Gold Platinum Opal Diamond RingRing size 6 1/4, ring top is 19mm x 13mm. Set with two 5.3mm opals and approx. 0.20ctw in diamonds. Marked: 18k plat. Weight - 5.8 grams.Gemstones have not been graded for color and clarity ,and testeSee Sold Price
Sold18k Gold Platinum Diamond Opal RingRing size 8 3/4, ring top is 26mm x 20mm. Set with opal gemstone - *has a fracture on one side, visible upon close inspection* and approx. .0.23ctw. Marked pt900,k18, 8.11,0.23. Weight - 10.5 grams.GeSee Sold Price
SoldA Platinum, Opal and Diamond Ring, 5.85 dwts.A Platinum, Opal and Diamond Ring, consisting of one oval cabochon cut opal measuring approximately 12.80 x 10.45 x 4.00 mm and 15 round brilliant cut diamonds weighing approximately 1.50 carats totalSee Sold Price
SoldPlatinum Opal Diamond Estate RingPlatinum Opal Diamond Estate Ring Stock # 38216 Beautiful opal diamond estate ring fashioned in platinum. The 5.2 carat fiery opal is surrounded by 14 round brilliant cut diamonds weighing approximateSee Sold Price
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
