0.89 CARAT OLD EUROPEAN CUT DIAMOND 0.12 CARAT EMERALD PLATINUM VINTAGE RINGModern Jewelry4.5(203)$2,5002 days Left
Platinum Setting with 0.40ct Emerald and 0.77ct Diamond Ladies RingRiverside Galleries4.5(198)$503 days Left
Platinum Setting with 0.40ct Emerald and 0.77ct Diamond Ladies RingRiverside Galleries4.5(198)$506 days Left
18K WHITE GOLD RING WITH 4.25CT NATURAL EMERALD AND 2.0CTS DIAMONDS SIZE: 5.75Modern Jewelry4.5(203)$4,750Feb 22, 2026
Vintage 1950's 18K White Gold NGI Certified Green Sapphire Diamond RingBidhaus4.2(836)$1005 days Left
Platinum Wide Band Ring with 1.8ctw Square Emerald and Baguette DiamondsBidhaus4.2(836)$1006 days Left
SoldDIAMOND & GEMSTONE PLATINUM RINGWith antique cut diamonds and mixed cut emeralds set in a scrollwork gallery on a platinum band; size 3-1/2, 4.5g Provenance: Private collection, Greenwich, CTSee Sold Price
SoldBlue Star Sapphire Diamond Gemstone, Platinum RingLadies vintage diamond and star sapphire ring. Features an oval blue star sapphire cabochon with three round cut and prong set diamonds set around the 9mm x 7.5mm x 7.25mm cabochon. Size 6. Weighs 4.7See Sold Price
SoldA diamond and gemstone platinum ringA diamond and gemstone platinum ringa scalloped form set with french-cut emeralds or sapphires and round brilliant-cut diamonds, centered by a bezel-set round brilliant cut diamond, weighing approximaSee Sold Price
SoldPlatinum 14K Gold Diamond Ring Setting Lot of 2METAL: platinum, 14k gold. GEMSTONES: diamonds. MEASUREMENTS: platinum ring setting size 5.5, shank is bent. Ring center will keep approx. 3.5 x3.5mm stone. Diamond band ring size 5.5. Band is 2.7mm aSee Sold Price
SoldCartier Meli Melo Platinum Gemstone Diamond RingMETAL: platinum. GEMSTONES: diamonds- approx. 0.20ctw, chalcedony, pink tourmaline, aquamarine, mandarin garnet. MEASUREMENTS: Ring size 7, measures 17mm at widest point. MARKED: 950 pt 55 cartier 282See Sold Price
SoldPlatinum, Diamond, & Gemstone RingMarked platinum ring set with colored tourmalines, colored spinels / topazes, and diamonds. 950 platinum. Marked "LOH D" and "PLAT". Ring size: about 8. Diamonds are approximately 0.015 each. 27 roundSee Sold Price
SoldPlatinum & Gemstone Ring - 2 Diamonds 1/2 CT TW& 3 CT Ruby Center - Kite Diamonds - Size 8 3/4 - appr. 12 grams with stones. See photos for condition and details.See Sold Price
Sold20ct Blue Topaz, 2.85ctw Multi-Gem & Diamond Ring20.00ct Blue Topaz, 2.85ctw Multi-Gemstone and Diamond Solid Platinum Ring - This lovely cocktail ring was finely crafted of solid platinum and boasts a 20.00ct (approximate) blue topaz that displaysSee Sold Price
SoldPlatinum Diamond Ring MountingMETAL: platinum. GEMSTONE: diamonds. MEASUREMENTS: Ring size 3 3/4, center will fit 4.8 X 4.2mm stone. MARKED: plat. WEIGHT: 5.9 grams. Gemstones have not been graded for color and clarity ,and testedSee Sold Price
SoldArt Deco Platinum Diamond RingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: Ring size 10, top measures approximately 11mm at widest point. MARKED: tested plat. WEIGHT: 2.9 grams. Gemstones have not been graded for color andSee Sold Price
SoldArt Deco Platinum Diamond Engagement Ring MountingMETAL: PLATINUM. GEMSTONES: diamonds.MEASUREMENTS: ring size 8.75. Ring center will keep approx. 8.5mm stone. TESTED: platinum. WEIGHT: 3.6 grams. Gemstones have not been graded for color and claritySee Sold Price
SoldTiffany & Co Platinum Diamond Eternity Band RingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 5.5. ring width is 2mm. MARKED: TIFFANY& CO PT950. WEIGHT: 2.4 grams. Gemstones have not been graded for color and clarity ,and testedSee Sold Price
SoldTiffany & Co Peretti Platinum Diamond Wedding Band RingMETAL: Platinum. GEMSTONES: Diamond. MEASUREMENTS: Ring size 6 1/2, band is 2.8mm. MARKED: Peretti Tiffany & Co PT950. WEIGHT: 5.8 grams.Gemstones have not been graded for color and clarity ,and tSee Sold Price
SoldPlatinum Diamond Engagement Ring MountingMETAL: platinum. GEMSTONES: diamonds.MEASUREMENTS: ring size 5.5. Ring center will keep approx. 4.5mm x 5.5mm stone. MARKED: QUAD, Plat 27740, 2.10. WEIGHT: 9.5 grams. Gemstones have not been graded fSee Sold Price
SoldAntique Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 6.75. Ring top is 14.5mm in diameter. Center of the ring will keep approx. 10mm round stone. Ring has sign MARINA in Gothic letters. TESTESee Sold Price
SoldPlatinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: Ring is a size 6, center will fit approximately 10.7mm X 7.5mm stone. MARKED: tested plat. WEIGHT: 4.7 grams. Gemstones have not been graded for colSee Sold Price
SoldNeil Lane 14K Gold Platinum Diamond Bridal RingMETAL: 14K gold, platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 5.5. Ring has three connected bands and it is 13.5mm at widest point. Ring center will keep approx. 5.5mm x5.5mm stone. MARKED/TSee Sold Price
SoldMid Century 18K Gold Platinum Diamond Band RingMETAL: 18k Gold, Platinum. GEMSTONES: Diamonds. MEASUREMENTS: Ring size 6 1/4, ring band is 5.2mm wide. TESTED: 18k, Plat. WEIGHT: 4.7 grams.Gemstones have not been graded for color and clarity ,and tSee Sold Price
SoldPlatinum Diamond Engagement Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 6. Ring center will keep approx. 7.5 x 7.5mm stone. marked: 10% Irid Plat Handmade. WEIGHT: 4.7 grams.Gemstones have not been graded for cSee Sold Price
SoldPlatinum Diamond Engagement Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 7.75( shank is broken). Ring center will keep approx. 6.5mm x 6.5mm stone. MARKED: PLAT, ring has engraved. WEIGHT: 3.8 grams. Gemstones hSee Sold Price
SoldPlatinum Diamond Engagement Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 6.5. Ring center will keep approx. 7.5mm stone. MARKED: Pt950. WEIGHT: 7.1 grams.Gemstones have not been graded for color and clarity ,andSee Sold Price
SoldPlatinum Diamond Eternity Band RingMETAL: Platinum. GEMSTONES: Diamonds. MEASUREMENTS: Ring size 4 1/4, ring band is 6mm wide. TESTED: Platinum. WEIGHT: 4.7 grams.Gemstones have not been graded for color and clarity ,and tested for claSee Sold Price
SoldAntique Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 8. Ring center will keep approx. 7.5mm stone. MARKED: Platinum. WEIGHT: 6.7 grams. Gemstones have not been graded for color and clarity ,aSee Sold Price
SoldPlatinum Diamond Engagement Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 7.5. Ring center will keep approx. 8mm stone. MARKED: J. Roca, tested platinum. WEIGHT: 6.1 grams. Gemstones have not been graded for coloSee Sold Price
