1.60 CARAT CIRCULAR BRILLIANT CUT I SI DIAMOND PLATINUM THREE-STONE RINGModern Jewelry4.5(203)$3,700Mar 03, 2026
0.89 CARAT OLD EUROPEAN CUT DIAMOND 0.12 CARAT EMERALD PLATINUM VINTAGE RINGModern Jewelry4.5(203)$2,5001 day Left
0.89 CARAT OLD EUROPEAN CUT DIAMOND 0.12 CARAT EMERALD PLATINUM VINTAGE RINGModern Jewelry4.5(203)$2,500Mar 03, 2026
1.52 CARAT BAGUETTE AND ROUND BRILLIANT H SI1 DIAMOND PLATINUM SEMI MOUNT RINGModern Jewelry4.5(203)$3,9001 day Left
1.52 CARAT BAGUETTE AND ROUND BRILLIANT H SI1 DIAMOND PLATINUM SEMI MOUNT RINGModern Jewelry4.5(203)$3,900Mar 03, 2026
1.13 CARAT H VS OLD EUROPEAN & BRILLIANT DIAMOND PLATINUM ART DECO RINGModern Jewelry4.5(203)$4,550Mar 03, 2026
1.13 CARAT H VS OLD EUROPEAN & BRILLIANT DIAMOND PLATINUM ART DECO RINGModern Jewelry4.5(203)$4,5501 day Left
Art Deco Platinum Ring with 0.30 Ct Diamond and 14 Smaller DiamondsDiamond Depot4.3(10)$5602 days Left
0.32 CARAT ROUND BRILLIANT H SI1 DIAMOND PLATINUM SEMI MOUNT RINGModern Jewelry4.5(203)$4,800Mar 03, 2026
0.32 CARAT ROUND BRILLIANT H SI1 DIAMOND PLATINUM SEMI MOUNT RINGModern Jewelry4.5(203)$4,8001 day Left
SoldONYX, DIAMOND, AND PLATINUM RINGONYX, DIAMOND, AND PLATINUM RING Two old European cut diamonds weighing approximately 1.75 carats total, black onyx bezel, and additional round, transitional, and old European cut diamonds weighing apSee Sold Price
SoldAGL 6.11 Colombian Emerald Diamond Onyx Platinum RingAn outstanding AGL certified 6.11 carat colombian emerald that has the deep pure green color desirable in gem quality emeralds. Bezel set in an expertly handcrafted platinum ring creatively designed wSee Sold Price
SoldFrench Art Deco Platinum Onyx Diamond RingFrench Art Deco Platinum Weight 5.82g Onyx Diamond Ring Size 7 Measurement 0.91”x0.74”See Sold Price
SoldPlatinum Onyx Diamond RingPlatinum Weight 6g Onyx Diamond  Approx. 81ct Ring Size 7 Measurements 0.9”x0.9”See Sold Price
SoldArt Deco 18k Gold Platinum Onyx Diamond RingMETAL: platinum, 18k gold. GEMSTONES: diamonds, onyx. MEASUREMENTS: Ring size 7.5. MARKED: tested 18 and plat. WEIGHT: 2.3 grams. Gemstones have not been graded for color and clarity ,and tested for cSee Sold Price
SoldA Belle Époque diamond, platinum, and onyx ring,A Belle Époque diamond, platinum, and onyx ringcentering a bezel-set old European-cut diamond weighing approximately 1.00 carat, flanked by old European-cut diamonds weighing approximately 0.30 caratSee Sold Price
SoldArt Deco Platinum Diamond Onyx Square RingMETAL: platinum. GEMSTONES: diamonds-approx. 0.77ctw,onyx. MEASUREMENTS: ring size 8.25. Ring top is 16.2mm x16.2mm. MARKED: 900 Plat,100 Irid. WEIGHT: 5.38 grams.Gemstones have not been graded for coSee Sold Price
Sold18k Gold Platinum Diamond Onyx Enamel RingMETAL: 18k Gold/Platinum. GEMSTONES: Diamonds approx. 0.50ctw. Onyx. Enamel. MEASUREMENTS: Ring size 6, top is 25mm. TESTED: 18k Plat. WEIGHT: 14.4 grams.Gemstones have not been graded for color and cSee Sold Price
SoldJEWELRY: Vintage platinum, onyx and diamond ring, tested platinum setting, filigree under galleryJEWELRY: Vintage platinum, onyx and diamond ring, tested platinum setting, filigree under gallery with scroll design on shoulders, bezel set onyx and diamond, center set with one rectangular, curved tSee Sold Price
SoldPlatinum Coral Onyx Diamond RingPlatinum Weight 5.1g Coral Onyx Center Diamond Approx. 0.50ct Vs1-H TW 0.74ct  Ring Size 7.75 Measurements 0.63”x0.79”See Sold Price
SoldPlatinum Diamond Coral Onyx RingPlatinum Weight 8.5g Diamond Center Stone Approx. 0.52ct TW 0.85ct Coral Onyx Ring Size 7.5 Measurements 1"x0.8"See Sold Price
SoldPlatinum Diamond Coral Onyx RingMETAL: Platinum. MEASUREMENTS: Ring size - 7.5, ring top - 18mm in diameter. GEMSTONES: Onyx, Coral, Diamonds approx. 0.95ctw. TESTED: Plat. WEIGHT: 6 grams.Gemstones have not been graded for color anSee Sold Price
SoldPlatinum Coral Onyx Diamond RingPlatinum Weight 4.07g Coral Onyx Diamond Approx. 0.25ct Ring Size 7.5 Measurements 0.62”x0.78”See Sold Price
SoldPlatinum Aqua Onyx Diamond RingPlatinum Weight 5g Aqua Onyx Diamond Approx. 0.25ct Ring Size 6 Measurements 0.57”x0.71”See Sold Price
SoldArt Deco Platinum Diamond Onyx Citrine Cocktail RingMETAL: Platinum. MEASUREMENTS: Ring size 7, top is 21mm x 17mm. GEMSTONES: Onyx, Diamonds approx. 0.40ctw, Citrine. MARKED: Punchmarks on the outside of the shank, 1216. WEIGHT: 10.2 grams.Gemstones hSee Sold Price
SoldART DECO OPAL AND DIAMOND PLATINUM RINGRound cabochon opal, 13.46 x 8.24 mm., approx. 8 cts., flanked by diamond volute shoulders with onyx bullets, tapered hoop with diamond accents, approx. .60 ct. TW, ca. 1938. Size 9 1/2. 7.7 dwt.See Sold Price
SoldPlatinum Onyx and Diamond RingPlatinum and diamond oval filigree leaf form ring. Nine bead-set round brilliant cut diamonds inset alongside onyx. Onyx on the shank on one side and melee diamonds on the other side. The band is carvSee Sold Price
SoldAn 18 Karat Yellow Gold, Platinum, Onyx and DiamondAn 18 Karat Yellow Gold, Platinum, Onyx and Diamond Ring, Montreaux, unsigned, containing one round cabochon cut onyx measuring approximately 16.60 mm in diameter and 20 round brilliant cut diamonds wSee Sold Price
SoldArt Deco Style Platinum, Diamond, and Black Onyx RingArt Deco Style Platinum, Diamond, and Black Onyx Ringthe platinum navette shaped mount with milgrain detailing set to the center with three marquise cut diamonds weighing approximately .70 total caratSee Sold Price
Platinum, Diamond, onyx and turquoise Deco style Ring.One center old miner Diamond Approx. 0.5 CT. Color: J-K. Clarity: VS1. Ring size: 7.5.See Sold Price
SoldPlatinum & diamond, emerald, & onyx deco style ringPlatinum and diamond deco style ring with emerald and onyx accents, an appx. 0.20ct marquis diamond bezel set with sixteen 0.02 ct diamonds, six 1mm square cut emeralds and six 1mm square onyx cabochoSee Sold Price
SoldEstate Platinum Emerald Onyx and Diamond RingComposition: Platinum Stones: • 1 Natural emerald 1ctw approx. • 22 Old mine cut diamonds H-VS2 1.50ctw • 32 calibrated cut onyxes Ring size: 7 ¾ Ring face: 18mm by 18mm Rise above finger: 7mm.See Sold Price
SoldAn Art Deco Platinum, Rose Gold, Diamond and Onyx Ring,An Art Deco Platinum, Rose Gold, Diamond and Onyx Ring, containing one triangular shape step cut diamond weighing approximately 1.20 carats within an onyx surround. 3.30 dwts. Estimate $2,000-3,000 SeSee Sold Price
SoldPlatinum Aqua Diamond Onyx Ring Platinum Weight 6g Aqua Approx. 2ct Diamond Approx. 0.5ct Onyx Ring Size 6.5 Measurements 0.6”x0.8”See Sold Price
