2021Attr. Cartier Platinum Articulating Panther RingAttributed to Cartier platinum articulating panther ring with pavé-set diamond and sapphire and having an articulated head and paws, set with pear-shaped emerald eyes and onyx nose. Ring size 7. StamSee Sold Price
Sold2021Platinum 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
Sold2020Platinum 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
Sold2017Art 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
Sold2024Art 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
Sold2023Art 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
Sold2016AGL 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
Sold2020A 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
Sold2019An 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
Sold2022French 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
Sold2021Platinum Onyx Diamond RingPlatinum Weight 6g Onyx Diamond  Approx. 81ct Ring Size 7 Measurements 0.9”x0.9”See Sold Price
Sold2020Platinum & 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
Sold2017Art 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
Sold2022Platinum Old European Diamond Ruby Onyx Engagement RingMetal : Platinum Designer : Not Signed Gemstone : Old European cut diamond - measures approx. 8.8 x 8.9 x 4.56mm as allowed by the setting, stone is approx. VS/I, with large open culet and smallSee Sold Price
Sold2022Platinum 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
Sold2021Platinum 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
Sold2022Platinum Aqua Onyx Diamond RingPlatinum Weight 5g Aqua Onyx Diamond Approx. 0.25ct Ring Size 6 Measurements 0.57”x0.71”See Sold Price
2019Platinum, 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
Sold2015Platinum Art Deco Diamond Sapphire and Onyx Cameo RingThis fabulous Art Deco piece is finely crafted from platinum. It features sparkling diamonds, colorful blue sapphires, and a very well done onyx cameo depicting a knight. The metal content is stampedSee Sold Price
Sold2019A Platinum Topped Yellow Gold, Pearl, Diamond and OnyxA Platinum Topped Yellow Gold, Pearl, Diamond and Onyx Ring, containing a pearl measuring approximately 6.80 mm (origin of pearl not tested), two round brilliant cut diamonds, 16 round single cut diamSee Sold Price
Sold2024JEWELRY: 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
Sold2019An 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
Sold2019Estate 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
Sold2022AN ART DECO ONYX AND DIAMOND RING in platinum, comprising a faceted onyx tablet set with an old cutAN ART DECO ONYX AND DIAMOND RING in platinum, comprising a faceted onyx tablet set with an old cut diamond of 0.60 carats, the shoulders set with single cut diamonds and further inlaid onyx, no assaySee Sold Price
4 days LeftPlatinum Auction GroupJudith Ripka Diamond Ring Onyx 18k Yellow Gold Cocktail Ring$300(1 bid)
2 days LeftArk Auctions IncAntique Estate Coral Platinum and Old Mine Cut Diamond Ring with Black Onyx$3,500
Featured6 days LeftJasper52Art Deco Inspired Sugarloaf Emerald and Old Mine Diamond Platinum Ring$6,000
4 days LeftPlatinum Auction GroupAntique LFG Certified 18K Rose Gold & Platinum Diamond Ring$3,000(1 bid)