Sold2023Art Deco Platinum & 18k Gold Car Pin BroochDESCRIPTION: An Art Deco Pin Brooch comprised of an 18k yellow gold foundations, inlaid with black Onyx, a platinum setting inset with Diamonds and a final Ruby accent. Stamped along the "750" Total WSee Sold Price
Sold2016An Art Deco Black Onyx & Diamond Bow PinPlatinum Art Deco brooch with black onyx and diamond bow brooch, 2 in. L, 9 gramsSee Sold Price
Sold2017Diamond and Onyx Bow Brooch in 14 Karat White Gold andAn Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.See Sold Price
Sold2022Art Deco Platinum Sapphire and Diamond BroochArt Deco Platinum Sapphire and Diamond Brooch Item # 6953 Category Pins & Clips *Art Deco Platinum Sapphire and Diamond Brooch* Weighing 20.9 grams Set with 24 dangling diamonds weighing app. 4.70 Ct.See Sold Price
Sold2022Turquoise and Diamond Flower Brooch Item # 6911 Category Pins & Clips Art Deco Platinum TurquoiseTurquoise and Diamond Flower Brooch Item # 6911 Category Pins & Clips Art Deco Platinum Turquoise and Diamond Flower Brooch Weighing 20.9 grams Set with an app. 18.00 Ct. real Turquoise Oval CabochonSee Sold Price
Sold2022Deco Diamond and Platinum BroochArt Deco Diamond, Emerald, Black Onyx and Platinum Brooch. Set in the center with an approx. .65 carat old European cut diamond, H-I color, VS2 clarity. Accented with approx. 3.50 carat TW old EuropeaSee Sold Price
Sold2022Art Deco Diamonds, Platinum & 18k Gold Car Pin BroochCirca 1920s. Art Deco Car Brooch crafted in 18k yellow Gold and Platinum on top, accented with Rose cut Diamonds. Along with one natural Round cut Emerald. Weight: 5.4 grams. Measurements: 1.2 x 0.6 iSee Sold Price
Sold2018ART DECO 7.76CTTW DIAMOND & PLATINUM BROOCH / CLIPEstate Art Deco platinum (tested) diamond double-clip brooch, c. 1930s, approx 7.46cttw, two fur or coat clips with pin mechanism to combine into single brooch, featuring pierced work and milgraining,See Sold Price
Sold2020AN ART DECO ONYX AND DIAMOND JABOT PIN BROOCH the bodyAN ART DECO ONYX AND DIAMOND JABOT PIN BROOCH the body terminated by drop shaped motifs set with black onyx cabochons within borders of old and rose cut diamonds, unmarked, 8.3cm, 7.3g.See Sold Price
Sold2022Estate Diamond & Gems 18k Yellow Gold Turtle Brooch PinThis adorable brooch is crafted from 18k yellow gold with a polished finish featuring a handmade turtle, featuring small assorted shape gemstones, turquoise, Mother of pearl and black onyx, all mounteSee Sold Price
Sold2022A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, setA FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.See Sold Price
Sold2022An Art Deco Diamond & Onyx Geometric Bow PinPlatinum geometric bow pin featuring diamonds weighing approx. 3.00 ctw with an average color grade of G-H and an average clarity grade of VS, bead set with French cut black onyx channel set in designSee Sold Price
Sold2021Art Deco, Platinum, Malachite compactCirca 1920s', The lovely compact made of malachite and black Onyx, Accompanied by a platinum hinge set with a carved coral and rose-cut diamond. Hallmarks. Measures 3 x 2 x 1/2". Heavy in weight.See Sold Price
Sold2020JEWELRY. Art Deco Cartier Jade, Diamond, Onyx, andSapphire Brooch or Bar Pin. Art Deco Cartier platinum bar pin or brooch comprised of a central onyx openwork frame with (2) sapphire cabochon accents, and (3) stacked bands of pave diamonds; flanked bSee Sold Price
Sold2023TIFFANY & CO. PLATINUM & 18K 4CTW DIAMOND BROOCHCirca 1890's Art Nouveau antique Tiffany and Co platinum brooch having 4ctw old mine cut diamonds(Clarity:VS-SI/Color:E-H) with an onyx inlay and 18K yellow gold clasp/pin. Stamped 18K on clasp, engraSee Sold Price
Sold202314k Gold Diamond & Onyx Stickpin14k Yellow Gold Diamond and Black Onyx Stick Pin Brooch Out of a New York City EstateSee Sold Price
Sold2021Amazing Art Deco 925 Black Onyx Pin BroochBeautiful art deco 925 sterling silver black stone pin brooch, 3 1/2 x 1 1/4 inches, 8.9 gramsSee Sold Price
Sold2016ART DECO 10.00 CT DIAMOND & PLATINUM BROOCH / CLIPLadies estate Art Deco platinum and approx 10.00 ct total weight diamond convertible brooch / dress clips, the frame allows it to be converted to a matched pair of dress clips, the brooch is hand fabrSee Sold Price
Sold2016Art Deco 1.50ctw Diamond Platinum Brooch PinA platinum brooch set with approximately 1.50ctw of old mine cut diamonds separated by synthetic sapphires. The brooch measures 43mm x 23mm and weighs 6.0 grams.Gemstones have not been graded for coloSee Sold Price
Sold2018Art Deco Platinum Diamond Pin BroochMETAL: platinum. GEMSTONES: diamonds-approx. 0.90 -1.00ctw. MEASUREMENTS: brooch 60 x 6.3mm at widest point. MARKED: Plat. WEIGHT: 5.4 grams.Gemstones have not been graded for color and clarity, and tSee Sold Price
Sold2024Vintage Art Deco Diamond Onyx Coral Pin ClipsVintage Art Deco Gold & Silver Pin holding a pair of removable Clips formed as scrolls & flowers with diamonds and onyx & coral highlights. Total weight 33.61 grams. Width assembled on pin frame 2 1/4See Sold Price
Sold2019Boxed Tuxedo Set: Onyx & DiamondBoxed tuxedo set of (8) Art Deco hexagonal black onyx, diamond, platinum and 9 ct white gold pair cufflinks, 4 buttons and 2 shirt studs, all with round full-cut center diamonds, total wt. approx .60cSee Sold Price
Sold2022Art Deco Platinum Diamond Brooch/ClipsArt Deco Platinum Diamond Brooch/Clips Weighing 28.8 grams Set with 108 Diamonds weighing app. 12.00 Ct. F-H Color, VS1-SI1 Clarity 2 Inches in lengthSee Sold Price
Sold2020Art Deco Diamond, Black Onyx, Platinum BraceletArt Deco Diamond, Black Onyx, Platinum Bracelet The bracelet features transitional-cut diamonds weighing a total of approximately 4.50 carats, enhanced by calibré-cut black onyx, set in platinuSee Sold Price
3 days LeftSeized Assets AuctioneersVintage 14k Gold Black Onyx & Old Cut Diamond Long Freeform Ribbon Brooch Pin$1
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4 days LeftFederal Assets AuctioneersAntique Victorian 14K Rose Gold Black Onyx Mourning Dangle Chandelier Brooch Pin$1
May 06Heritage Auctions55213: Art Deco Diamond, Platinum, White Gold Double-C$4,000(1 bid)