Sold2021Roberto Coin 1.00ctw VS1-VS2/G-H Diamond, Onyx 18K RingRoberto Coin 1.00ctw VS1-VS2/G-H Diamond, 20.5mm Faceted Onyx Solid 18K Rose Gold Cocktail Ring - This beautiful ring was made by Roberto Coin, and was finely crafted of solid 18k rose gold. This ringSee Sold Price
Sold2020Van Cleef & Arpels 0.60ctw Diamond, Onyx & 18K RingVan Cleef & Arpels 0.60ctw VVS2-VS1/F-G Diamond, Onyx & Solid 18K Yellow Gold Ring - This lovely ring was made by one of the world's foremost designers of high-caliber luxury jewelry, Van Cleef & ArpeSee Sold Price
Sold2021Van Cleef & Arpels 0.50ctw Diamond, Onyx & 18K RingVan Cleef & Arpels 0.50ctw VS1-VS2/E-F Diamond, Carved Onyx and Solid 18K Yellow Gold Buckle Ring - This beautiful ring comes from one of the world's foremost designers of high-caliber luxury jewelry,See Sold Price
Sold2020Oro Trend 0.75ctw VS2-SI1/G-H Diamond, Onyx 18K RingOro Trend 0.75ctw VS2-SI1/G-H Diamond, Black & White Onyx Solid 18K White Gold Ring - This ring was made by Oro Trend and was finely crafted of solid 18k white gold. The ring is decorated with white aSee Sold Price
Sold202113mm Clear Quartz, 0.75ctw Diamond, Onyx & 18K Ring13mm Clear Quartz, 0.75ctw SI1-SI2/G-H Diamond, Onyx and 18K White Gold Ring - This lovely ring is made of solid 18k white gold and is decorated with black onyx and a central 13mm clear quartz over aSee Sold Price
Sold2022Van Cleef & Arpels 0.80ctw Diamond, Onyx & 18K Swan RingVan Cleef & Arpels 0.80ctw VS1-VS2/G-H Diamond, Fluted Onyx and Solid 18K Yellow Gold Swan Bypass Ring W/0.35ctw Emerald Accents - This beautiful ring was made by one of the world's foremost designersSee Sold Price
Sold2022Roberto Coin 1.00ctw Diamond, 27.5mm Onyx 18K RingRoberto Coin 1.00ctw VS1-VS2/G-H Diamond, 27.5mm Faceted Onyx Solid 18K Rose Gold Cocktail Ring - This beautiful ring was made by Roberto Coin, and was finely crafted of solid 18k rose gold. This ringSee Sold Price
Sold2022Diamond, Onyx and 18K RingVintage Forty Invisible Set Square Cut Diamond, Black Onyx and 18 Karat Yellow Gold Ring. Diamonds F-G color, VS1-VS2 clarity. Ring size 6-1/2. Approx. weight: 10.60 grams. Condition: Very good vintagSee Sold Price
Sold2022Modernist Pave Diamond Onyx 18k Gold RingConcentric ovals of onyx and pave diamonds stacked on 18k yellow gold setting. Ring size 6.75, top length 1 3/8 in.; total weight 15.9 grams Provenance: The Estate of Virginia Lamberton, San AntonioSee Sold Price
Sold2021Spritzer & Fuhrmann Diamond, Coral and Onyx 18K RingSpritzer & Fuhrmann 1960s 0.20ctw Diamond, Coral and Onyx 18K Yellow Gold Op-Art Ring - This lovely vintage ring from Spritzer & Fuhrmann is crafted of solid 18k yellow gold in an Op-Art design. The rSee Sold Price
Sold2023Van Cleef & Arpels Diamond Onyx 18k Gold Alhambra RingMETAL: 18k Gold. GEMSTONES: Diamond. Onyx. MEASUREMENTS: Ring size 4, ring top is 14.5mm x 14.7mm wide. MARKED: VCA 750, 47 CL111838. WEIGHT: 5.8 grams. Retail $3550.Gemstones have not been graded forSee Sold Price
Sold2024Men's Diamond & Black Onyx 18K Gold Ring, designerwith 6 round diamonds totaling .60 carat, high grade, 18k yellow gold, 15 grams, with appraisal of $4,650.00, size 10 1/4.See Sold Price
Sold2022Gucci Marche des Marveilles Diamond Onyx 18k Gold Cat RingMetal : 18k Gold Designer : Gucci Gemstone : Onyx, Diamond Measurements : Ring size 6, top measures 10mm x 9mm Marked: : 12, Gucci, Au750, Italian mark. Weight: 6.2 gramsSee Sold Price
Sold2022Art Deco Onyx Diamond 18k RingArt Deco Onyx Diamond Approx 0.1ct 18k White Gold  Weight 6.72gr Measurement 0.3”x0.83” Ring Size See Sold Price
Sold20221.25ctw SI1-SI2/G-H Diamond, 18K & Onyx Ring1.25ctw SI1-SI2/G-H Diamond, Solid 18K Yellow Gold & Onyx Ring - This lovely ring was finely crafted of solid 18k yellow gold and black onyx. The ring is decorated with approximately 1.25ctw SI1-SI2/GSee Sold Price
Sold2021Magerit Babylon 19.5mm Onyx, Diamond and 18K RingMagerit Babylon 19.5mm Onyx, 0.50ctw Diamond and Solid 18K Yellow Gold Caramelo Ring - This beautiful Caramelo ring from Spanish luxury jewelry house Magerit's Babylon collection is crafted in solid 1See Sold Price
Sold2021Diamond, Onyx, Chrysoprase 18K Gold Bombe RingDiamond, onyx, chrysoprase 18k yellow gold bombe ring. Unknown makers mark on outside of ring. Ring features an onyx inlaid center flanked with vibrant green chrysoprase inlays accented with 11 bead sSee Sold Price
Sold2022David Yurman Albion Diamond Onyx 18k Gold 925 Silver Ring Size 5.75This is an authentic ring by David Yurman from the Albion collection, it is crafted from sterling silver with 18k yellow gold featuring an oval polished onyx at the top center in yellow gold bezel mouSee Sold Price
Sold2019Diamond, Black Onyx, 18k White Gold Ring.Diamond, Black Onyx, 18k White Gold Ring. Featuring thirty-two full-cut diamonds weighing a total of approximately 0.40 cttw., set in an 18k white gold flower motif mounting atop a black onyx segment,See Sold Price
Sold2021Onyx, Diamond and 18K RingMan's Vintage Black Onyx, Diamond and 18 Karat Yellow Gold Ring. Ring size 6-1/2. Approx. weight: 8.42 grams. Condition: Good vintage pre-owned condition. Estimate: $300.00 - $500.00 Domestic ShippingSee Sold Price
Sold2022A VCA Pave Diamond & Onyx Ring in 18K18K yellow gold ring featuring large oval bezel set black onyx measuring 17.5 x 25 mm with an oval pave diamond center, wide high polished shank, inside shank engraved "VCA 5KLO.1," sz 5.5, 11.5 gramsSee Sold Price
Sold2021Luca Carati 0.90ctw Diamond, 18K & Onyx Key RingLuca Carati 0.90ctw VS1-VS2/G-H Diamond, Solid 18K White Gold & Onyx Key Ring - This lovely key ring was made by Luca Carati and was finely crafted of solid 18k white gold. The key ring has a horse moSee Sold Price
Sold202029mm Carved White Onyx, 0.75ctw Diamond 18K Ring29mm Carved White Onyx, 0.75ctw SI1-SI2/G-H Diamond Solid 18K White Gold Ring - This lovely ring was finely crafted of solid 18k white gold and boasts a 29mm carved white onyx which is decorated withSee Sold Price
Sold2017Black Onyx, Diamond, 18k Yellow Gold Ring.Black Onyx, Diamond, 18k Yellow Gold Ring. Featuring one rectangular-cut black onyx tablet, surrounded by twenty-two full-cut diamonds weighing a total of approximately 0.30 cttw., set in an 18k yelloSee Sold Price
2 days LeftPlatinum Auction GroupJudith Ripka Diamond Ring Onyx 18k Yellow Gold Cocktail Ring$300(1 bid)
Featured15 hrs LeftLilly M. JEWELERSGIA Diamond Emerald Onyx Art Deco Style Cocktail Ring in 18K White Gold$900
15 hrs LeftLilly M. JEWELERSOld Cut Diamond with Emerald Onyx Octagonal Shape Engagement Ring in 18K White Gold$2,000