1.25 CT Australian Black Opal Ring in Platinum with Diamonds sz 6.25Gallery 634.6(246)$130(2 bids)16 hrs Left
2.02 CTTW Australian Black Opal and Diamond Platinum Ring sz 5.5Gallery 634.6(246)$30(2 bids)16 hrs Left
14K White Gold Australian Black Opal and Diamond Solitaire Ring Size 6.5Mynt Auctions4.4(818)$100Feb 04, 2026
Exquisite Platinum Opal 3.50 Ct Diamond Ring with 24 G-H DiamondsDiamond Depot4.3(10)$1,4502 days Left
Platinum Ladies Ring with 4.02ct Black Opal and 0.72tcw Adjacent DiamondsRiverside Galleries4.5(197)$505 days Left
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
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
SoldA mid 20th century 18ct gold and platinum, opal andA mid 20th century 18ct gold and platinum, opal and diamond cluster ring. The opal cabochon, within a single-cut diamond surround. Estimated total diamond weight 0.10ct. Ring size O. Weight 2.6gms. OvSee Sold Price
SoldMid Century Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds-approx.1.50ctw. MEASUREMENTS: ring size 5.25. Ring top is 21mm in diameter. Ring center will fit approx. 6.7mm round stone. TESTED: platinum. WEIGHT: 9.7 grams. GeSee Sold Price
SoldMid Century Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Two baguette diamonds (one damaged/chipped). Center of the ring fit approx. 11mm x 10mm stone. MEASUREMENTS: Ring size 5 3/4, ring top is 11.5mm wide. TESTED: Plat. WEIGHT:See Sold Price
SoldMid Century Platinum Diamond RingMETAL: Platinum. GEMSTONES: Center diamond approx. 1.00-1.10ct (imperfect) , surrounding diamonds approx. 0.47ctw. MEASUREMENTS: Ring size 5 1/2, ring top 16mm wide. MARKED: 10%Irid Plat. WEIGHT: 8.8See Sold Price
SoldMid Century Platinum Diamond RingMETAL: Platinum. MEASUREMENTS: Ring size - 7.5, ring top - 13mm x 20mm. GEMSTONES: Diamonds approx. 1.40ctw. MARKED: 10% irid. plat. WEIGHT: 5.5 grams.Gemstones have not been graded for color and clarSee Sold Price
SoldMid Century Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.50ctw. MEASUREMENTS: Ring size 3 3/4, center will fit approx. 10mm in diameter stone. TESTED: Plat. WEIGHT: 5.9 grams.Gemstones have not been graded forSee Sold Price
SoldMid Century Platinum Diamond RingMETAL: Platinum. GEMSTONES: Diamonds approx. 1.00ctw. MEASUREMENTS: Ring size 8, top is 11.5mm. TESTED: Plat. WEIGHT: 7.4 grams.Gemstones have not been graded for color and clarity, and tested for claSee Sold Price
SoldMid Century Platinum Diamond RingMETAL: platinum. GEMSTONES: diamonds-approx. 0.80ctw. MEASUREMENTS: ring size 6.5. Ring top is 10mm at widest point. MARKED: 10% Irid Pt. WEIGHT: 6.2 grams.Gemstones have not been graded for color andSee Sold Price
SoldMid Century Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: baguette cut diamonds - approx. 0.15-0.20ct each. MEASUREMENTS: ring size 4.75, ring center will fit to 10-10.5mm stone. MARKED: hand made, tested platinum. WEIGHT: 4.9 graSee Sold Price
SoldMid Century Platinum Diamond Ring SettingMETAL: Platinum. MEASUREMENTS: Ring size - 4.5, ring top - 16mm wide. Center will fit approx. 8.8mm stone. Shank is bent. GEMSTONES: Diamonds in the setting. MARKED: Engraved initials " A to M&quSee Sold Price
SoldMid Century Platinum Diamond Ring SettingMetal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 0.72ctw Measurements : Ring size 4, center will fit approx. 7mm stone Marked: : Tested - Plat Weight: : 4 gSee Sold Price
SoldMid Century Platinum Diamond Ring MountingRing mounting will fit approx. 9mm round stone. Ring size 4.5. Tested platinum. Inside shank engraved "Claude, 31-5-54". Weight - 4.3 grams. Gemstones have not been graded for color and clarSee Sold Price
SoldMid Century Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 6.5. Ring center will keep approx. 8mm stone. TESTED: platinum. WEIGHT: 5.6 grams.Gemstones have not been graded for color and clarity ,anSee Sold Price
SoldMidcentury Platinum Diamond RingMETAL: Platinum. MEASUREMENTS: Ring size 10, ring top is 21mm x 18mm. GEMSTONES: Diamonds approx. 2.00-2.20ctw (one larger stone is chipped). TESTED: Plat. WEIGHT: 4.9 grams.Gemstones have not been grSee Sold Price
SoldMidcentury Platinum Diamond Ring SettingMetal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 0.80ctw Measurements : Ring size 6, top is 12.5mm wide, Center will fit approx. 7.8mm stone Marked: : 10% irid. plat <See Sold Price
SoldMidcentury Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 1.00ctw. MEASUREMENTS: Ring size 8 1/4, top is 14.1mm. Center will fit approx. 8mm stone. TESTED: Plat. WEIGHT: 7.2 grams.Gemstones have not been graded foSee Sold Price
SoldMidcentury Platinum Diamond RingMETAL: Platinum. GEMSTONES: Diamonds approx. 1.00-1.15ctw. MEASUREMENTS: Ring size 6 3/4, top is 15.9mm. MARKED: 10%Irid Plat (partially polished off). WEIGHT: 5.5 grams.Gemstones have not been gradedSee Sold Price
SoldMidcentury Platinum Diamond RingMETAL: Platinum. MEASUREMENTS: Ring size 5.75, top is 15mm x 15mm. GEMSTONES: Diamonds approx. 0.50ctw. TESTED: Plat. WEIGHT: 3.2 grams.Gemstones have not been graded for color and clarity, and testedSee Sold Price
SoldMidcentury Platinum Diamond Ring SettingMETAL: Platinum. MEASUREMENTS: Ring size 10.5, ring top is 15mm wide, center will fit approx. 7.3mm stone. GEMSTONES: Diamonds approx. 0.65ctw. TESTED: Plat. WEIGHT: 7.2 grams.Gemstones have not beenSee Sold Price
SoldMidcentury Platinum Diamond Ring SettingMETAL: Platinum. MEASUREMENTS: Ring size 5.5, center will fit approx. 11.8mm stone. GEMSTONES: Diamonds approx. 0.50ctw. TESTED: Plat. WEIGHT: 5.5 grams.Gemstones have not been graded for color and clSee Sold Price
SoldMidcentury Platinum Diamond RingMetal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 0.60ctw. Measurements : Ring size 6.25, width 7mm. Marked: : Tested plat. Weight: : 6.7 grams CoSee Sold Price
SoldMid Century Platinum Diamond Ballerina RingMetal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 3.30ctw (center approx. 0.75ct H-I/VS2-SI1). Measurements : Ring size 5.75, top is 20mm in diameter. Marked: : PlatinSee Sold Price
