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|  | Brooch Pin Onyx Art Deco Boho Vintage Sterling Marcasite Stylized Kitty Cat $34.99 | |
 | Onyx Pin/Brooch Vintage Sterling Silver $20.00 | |
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|  | Pin Brooch Vtg Sterling Onyx $14.99 | |
 | Rhinestone Mouse Figural Brooch Pin Vtg Juliana Style Black Onyx Clear $58.50 | |
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|  | Marcasite & Rhinestone Pin Brooch Vintage 925 Sterling Silver Genuine Onyx $30.00 | |
 | Onyx Gemstone Open Pin Brooch 925 Sterling Silver Vintage Real Black $76.99 | |
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|  | Style Sterling Silver Brooch Pin Pendant Jaguar & Black Onyx Marcasite Art Deco $22.00 | |
 | Onyx Coral Stamped 1.75” x 0.5” Vintage Estate Bar Silver Brooch Pin $18.95 | |
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|  | Marcasites Art Deco Style Pin Brooch 925 Sterling Silver Vintage Black Onyx & $29.99 | |
 | Marcasite Onyx Brooch Pin Vintage Deco Sterling Silver Amethyst $29.00 | |
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|  | Onyx Pattern Brooch Pin Bp2108 Mexico 925 Sterling Silver Vintage Black $62.99 | |
 | Brooch Pin Filigree A1 Vintage Gold Filled Black Onyx $22.49 | |
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|  | Brooch Pin 1 5/8 X 2" Vintage Monet Black Onyx & Marcasite Silvertone $33.00 | |
 | Onyx Engraved Pin Brooch Ce28. Antique Sterling Silver and $20.00 | |
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|  | Gold Tone Brooch Estate Pin Vintage Park Lane Black Faux Onyx $14.99 | |
 | Faceted Crystals Brooch Pin Silver Tone Vintage Faux Black Onyx Swirl White $8.95 | |
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|  | Pin Ornate Filigree Openwork Vintage Silvertone Onyx Marcasite Brooch $15.99 | |
 | Black Onyx Brooch Pin Vintage Sterling Silver 925 $30.00 | |
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|  | Lapel Black Onyx Brooch Nf Vintage Sterling Silver Bar Pin $19.99 | |
 | leaf brooch pin Hallmarked Sterling Brooch Vtg Sterling silver brooch Black Onyx $24.77 | |
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|  | Pin Raised Pierced Design Convertible Vintage Sterling Onyx Mexico Brooch $30.00 | |
 | Black Onyx Heart Marcasite Vintage .925 Sterling Silver Brooch Pin $23.96 | |
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|  | Southwestern Style Brooch Pin 1.5”x1” Read Vintage Sterling Silver Oval Onyx ? $20.00 | |
 | Black Onyx Stone Brooch Vintage Sterling Silver Filigree Pin $35.00 | |
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|  | Brooch Pin Milgrain 925 Fine Silver Jewelry Art Deco Lab Diamonds & Black Onyx $290.00 | |
 | Brooch Marcasite .925 Sterling Silver Carved Onyx Stone Leaf Pin $20.00 | |
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|  | sassy cat brooch pin 925 Sterling silver and Onyx $25.00 | |
 | Designer Scratched Cabochon Onyx Bp10719 925 Sterling Silver Vintage Brooch Pin $87.99 | |
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|  | Tone Pin Brooch Vintage Black Onyx $8.00 | |
 | Look 2 inch by 1.5 inch Oval Onyx Silver Marcasite Pin Brooch Victorian $54.29 | |
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|  | Onyx Gemstone Modernist Pin Brooch 925 Sterling Silver Vintage Real Black $69.99 | |
 | Lot of 2-Black Onyx & Marcasites Vtg Sterling Silver 925 Brooch Pin $25.50 | |
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|  | Marcasite Gemstone Pendant Pin Brooch Sterling Silver Black Onyx & $44.99 | |
 | Black Onyx ~ Beau Sterling Silver Vintage & Beautiful Brooch / Pin with $16.99 | |
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|  | & Marcasite Brooch Pin Vintage 925 Silver Onyx $24.50 | |
 | Black Onyx Cabochon 925 Silver Pin Brooch $75.00 | |
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|  | Black Onyx Brooch Pin Bp9649 925 Silver Vintage Dotted Edge Rectangle $97.99 | |
 | Marcasite Huge Statement Brooch Pin Vintage 925 Sterling Silver Black Onyx $48.00 | |
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|  | & Black Onyx Circle Brooch Pin Vintage Art Deco Style Sterling Silver Marcasite $58.99 | |
 | Geometric Pin Brooch 2 1/4" x 1" Black Onyx Green Malachite Gold Tone Accent $15.00 | |
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|  | Etched Border Brooch Pin Bp8737 Southwestern 925 Silver Vintage Black Onyx $128.99 | |
 | Onyx Brooch Pin 1.75 inches Elegant Swirl Gold Tone Black $9.97 | |
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|  | Onyx Large Brooch Art Deco Black $145.00 | |
 | Carved Onyx Face Brooch Pin Vintage Icuala Southwestern Sterling Silver $25.00 | |
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|  | / Brooch - 1 " diameter Vintage Sterling Silver Onyx Antiqued Pin $19.95 | |
 | Fauceted Simulated Gem Silver Tone Lapel Vintage Faux Onyx Brooch Pin Jet Black $9.99 | |
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|  | Marcasite Oval Brooch Pin! 27 Vtg Estate Sterling Silver, Onyx & $16.39 | |
 | Brooch Marcasite .925 Sterling Silver Onyx Opulence Black Onyx Stone Pin $30.00 | |
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|  | Rhinestone Brooch Pin Oval 1 1/2" Vintage 925 Sterling Silver Black Onyx $24.95 | |
 | Onyx Marcasites Oval Pin Brooch Vtg Judith Jack Sterling Silver Black $65.00 | |
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|  | black Onyx middle stone Marcasites Amw vintage 925 Brooch Pin $15.00 | |
 | Onyx & Green Stone Bar Brooch Signed Art Deco Sterling Silver, Real Marcasite, $41.95 | |
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|  | Onyx And Marcasite Brooch Pin Bt11 Vintage 925 Sterling Silver $20.00 | |
 | Pin Black Onyx Stone Prong Set 1x3/4" Vintage Small Oval Shaped Gold Tone Brooch $8.96 | |
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|  | Pin Brooch 1.5 in ~ 4.2 grams Vintage Art Deco Black Onyx & Marcasite Bar $19.50 | |
 | & Marcasite Gem Art-Deco-Style Pin Brooch 925 Sterling Silver Vintage Black Onyx $45.00 | |
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|  | Bow Shape Pin Brooch 5.4gr Vintage Sterling Silver Onyx Marcasite Small $12.50 | |
 | 2 inch by 1.5 inch Oval Onyx Silver Marcasite Pin Brooch $49.99 | |
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|  | Silver Tone Fossil Pin Dinosaur Bone Gembone Brooch Black Onyx Mother of Pearl $40.00 | |
 | ~ Brooch/Pin Black Onyx $40.00 | |
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|  | Marcasite Large Chunky Frog Brooch Pin Vintage 925 Sterling Silver Black Onyx $65.00 | |
 | Floral Vine Border Brooch Pin Bp9304 925 Sterling Silver Vintage Black Onyx | |
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|  | Onyx Agate Marcasite Brooch Pin Vintage Art Deco Silvertone Black $9.95 | |
 | Vintage Deco Bar Brooch Pin (8.8g) Sterling Silver 925 Marcasites Black Onyx $18.99 | |
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|  | Onyx Mourning Brooch Pin Antique 10K Yellow Gold $229.00 | |
 | Black Onyx Marcasite Brooch Pin #109 Vintage Art Deco 925 Sterling Silver $41.65 | |
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|  | onyx and marcasite brooch pin Vintage 1920's Art Deco sterling silver $78.00 | |
 | Eyes Green Onyx Frog Brooch Pin Cw 925 Silver Marcasite Malachite Carnelian $29.25 | |
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|  | Onyx Stone Textured Pin Marked Vintage Sterling Silver Leaf Brooch Black $52.79 | |
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| Click to see more Onyx items at www.ebay.com
Prices current as of last update, 03/29/25 5:15pm.
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