0.43 CARAT OLD EUROPEAN CUT H VS1 DIAMOND PLATINUM ENGAGEMENT RINGModern Jewelry4.5(203)$2,200Mar 03, 2026
0.46 CARAT OLD EUROPEAN CUT G VS DIAMOND PLATINUM ART DECO RINGModern Jewelry4.5(203)$2,200Mar 03, 2026
0.75 CARAT OLD EUROPEAN CUT H VS DIAMOND 14 KARAT WHITE GOLD ENGAGEMENT RINGModern Jewelry4.5(203)$4,000Mar 03, 2026
0.56 CARAT OLD EUROPEAN CUT H VS DIAMOND 14 KARAT WHITE GOLD BAND RINGModern Jewelry4.5(203)$2,600Mar 03, 2026
ANTIQUE PLATINUM RING WITH 1.30CTS OF DIAMONDS (1CT VS CENTER) SIZE: 5.5Modern Jewelry4.5(203)$4,150Feb 22, 2026
Tiffany & Co. Platinum .50 ct Diamond Ring - 5.5The Tiffany & Co. Platinum 0.50 ct Diamond Flower Cocktail Ring blooms with graceful beauty. A center diamond surrounded by six shimmering diamond petals makes up the chic centerpiece of this ring. ThSee Sold Price
SoldPlatinum and .50 Ct Diamond RingPlatinum setting with approximately 0.50 carat Old European cut diamond. Clarity VS2, Color J-K. Ring size 6.25; 3/8" wide. 2.2 grams.See Sold Price
SoldPlatinum .50ct (estimated) diamond ring, c1925, 2.6 dwtsPlatinum .50ct(estimated) diamond ring, c1925, 2.6 dwtsSize: 5 1/2See Sold Price
SoldPlatinum & 5.50ct. Diamond RingPlatinum & 5.50ct. Diamond Ring. 4.6 dwt. Size - 6. E-F/VVS-VSSee Sold Price
SoldAntique Diamond Platinum Ring .50 ct10% iridium/platinum ring, near colorless, SI-I clarity, approx. .50 ct with small round accent diamonds, filigree and engraved mounting, size 6.75, 2.1 DWTSee Sold Price
Sold15CT SAPPHIRE .50CT DIAMOND AND PLATINUM RING15.00CT SAPPHIRE, .50CT DIAMOND, AND PLATINUM RING, SIZE 6:Having a 15.00ct composite sapphire set in a foliate style platinum setting enhanced by .50ct diamonds. The diamonds have a G-color and VS-2See Sold Price
SoldPlatinum Diamond RingPlatinum Diamond Ring approximately .50 ct diamond center stone set with five round brilliant cut diamonds and two baguette diamonds ring size 4 1/2, weight: 1.7 dwt grossSee Sold Price
SoldVintage 0.65ctw SI1-SI2/G-H Diamond Platinum RingVintage 0.65ctw SI1-SI2/G-H Diamond & Solid Platinum Ring W/0.50ct Center Diamond - This lovely vintage ring was finely crafted of solid platinum and is embellished with approximately 0.65ctw genuineSee Sold Price
SoldLadies Platinum Diamond Ring Laura RamseyLadies Platinum diamond ring with Rubellite Tourmaline. Laura Ramsey. Stamped Platinum, 0.50 ct total weight of diamonds. Round and baguette stones.See Sold Price
SoldPlatinum Sapphire Diamond RingPlatinum Weight 3.84g Sapphire Approx.0.50ct  Diamond Approx. 0.35ct Ring Size 7.5 Measurements 0.51”x0.78”See Sold Price
SoldPlatinum Diamond Eternity BandPlatinum setting with channel set single cut diamonds, approx. 0.50 ct total weight diamond, ring size 7, 1.7 dwtSee Sold Price
SoldPLATINUM DIAMOND AND EMERALD RINGPlatinum and approx 4.50 ct diamond and approx .80 dt emerald center stone ring. Weighs 5.6 tozSee Sold Price
SoldEstate Diamond and Sapphire Cocktail Ring in PlatinumEra: Estate/Vintage, Metal type: Platinum, Gemstones: Diamond - .50 ct VS/SI and sapphire, Size: 7.5, Weight: 8.0 gSee Sold Price
SoldJugendstil "Toi et Moi"-DiamantringPlatin. Besetzt mit zwei Altschliffdiamanten von zus. ca. 1,50 ct.; Gew. ca. 3,51 g. Ring set with two diamonds approx. 1,50 ct., in platinum.See Sold Price
SoldA Platinum & Diamond Engagement RingA platinum engagement ring featuring a .50ct center diamond with .35 ct side stones and smaller diamonds along the shank. Sz 6. Wt: 5 grams.See Sold Price
SoldArt Deco 18k Platinum Sapphire Diamond RingArt Deco 18k Platinum Weight 4.7 Sapphire Approx. 0.50ct Rose Cut Diamond Approx. 0.5ct Ring Size 6.5  Measurements  0.81”x0.71”See Sold Price
SoldEMERALD, DIAMOND & PLATINUM RINGSet with a cushion-cut emerald, weighing approx. 3.04 cts. by formula, and channels of straight baguette-cut diamonds, approx. .50 ct. TW, in platinum. Size 6 1/2. 3.5 dwt.See Sold Price
SoldPlatinum Aquamarine Diamond Sapphire RingMetal : Platinum Designer : Not Signed Gemstone : Aquamarine approx. 5.50ct, Sapphires, Diamonds approx. 0.42ctw Measurements : Ring size 7.5, top is 19mm x 18mm Marked: : tested platSee Sold Price
SoldAntique Platinum Diamond RingAntique platinum diamond ring, round brilliant central diamond (.50 ct), diamond bezel, filigree basket, six shoulder set round brilliant stones, marked size: 6.25 total weight: 3.1 grams ProvenanceSee Sold Price
Sold35.50ct Amethyst & Platinum Ring W/Diamond Accents35.50ct Amethyst & Solid Platinum Cocktail Ring W/Diamond Accents - This beautiful ring was finely crafted of solid platinum and boasts a massive 35.50ct (approximate) emerald cut amethyst. The amethySee Sold Price
SoldArt Deco Platinum Diamond Engagement RingArt Deco platinum engagement ring, with approx. 0.50ct center diamond , and approx. 0.08ctw side diamonds. Ring size - 5.25. Marked: .900 plat. 10% irid., GC&D. Weight - 2.9 grams.See Sold Price
Art Deco Ruby Diamond Platinum RingArt Deco Ruby Diamond Platinum Ring Diamond total weight approx. 1.50 ct Rubies total weight approx.0.50 ct Ring Size: 7.75 Total Weight: 5.6 gSee Sold Price
SoldVictorian 2.5 CT Miner Diamond Moon Shape Sapphire RingAntique Victorian Platinum & approx 2.50 Carats TCW Old Miner Diamond & Moon Shaped Sapphire Ring. Precious Metal Type: PlatinumMain Stone: Old Miner Diamond, approx. 1.20 CT, SI1 Clarity, I-J Color RSee Sold Price
SoldEdwardian Platinum Emerald and Diamond RingEdwardian Platinum Colombian Emerald and Diamond Ring, comprising of 1 .50 ct emerald, flanked by 2 round diamonds, approx. 1/4 ct each, setting with approx. .50 ct (total weight) diamonds [4373](CLDISee Sold Price
