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Art Deco Platinum, Diamond and Black Onyx Brooch

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  • Art Deco Continental Platinum Diamond Onyx Brooch
    Located in New York, NY
    Art Deco platinum brooch , with approx. 3.80ctw SI/I diamonds and onyx (few stones are chipped). The brooch measures 2 3/8" x 1 1/16". With Continental assay marks on the stem. Weig...
    Category

    Vintage 1920s European Art Deco Brooches

    Materials

    Diamond, Onyx, Platinum

  • Tiffany & Co. Art Deco Platinum Onyx Diamond Brooch
    Located in New York, NY
    Platinum onyx diamond bar pin, signed TIFFANY & CO 5554. Old European cut diamonds weighing approx. 0.90 cts, EF VS, measures 2 1/2 inches, weight 3.6 dwt
    Category

    20th Century American Brooches

    Materials

    Diamond, Onyx, Platinum

  • Iconic Art Deco 1920s Onyx Diamond Platinum Gold Brooch
    Located in New York, NY
    Iconic Art Deco design platinum top and gold back brooch, featuring onyx top, adorned with approx. 0.25ctw in diamonds. Brooch measures 1.5" x 0.75". Not ha...
    Category

    Vintage 1920s Art Deco Brooches

    Materials

    Diamond, Onyx, Gold, Platinum

  • Cartier Art Deco Diamond Onyx Platinum Jabot Brooch Pin
    By Cartier
    Located in New York, NY
    Iconic Art Deco jabot pin by Cartier, with onyx accents and approx. 2.60ctw G/VS diamonds. Brooch measures 2 5/8" in length and 0.5" in width. Marked Ca...
    Category

    Vintage 1920s French Art Deco Brooches

    Materials

    Diamond, Onyx, Platinum

  • Art Deco Carved Crystal Onyx Diamond Gold Platinum Bow Brooch
    Located in New York, NY
    Art Deco platinum top and 14k gold hardware bow brooch, adorned with carved frosted crystal, onyx accents and approx. 0.44ctw in diamonds. Brooch measures 2 3/8" x 1". Weight - 12.3 ...
    Category

    Vintage 1920s Art Deco Brooches

    Materials

    Crystal, Diamond, Onyx, Gold, Platinum

  • Art Deco Malachite Bar Diamond Black Onyx Pin Brooch
    Located in New York, NY
    Art Deco Malachite Bar Diamond Black Onyx Pin Brooch Old miner cut diamonds of approximately 7 carats total, with a rectangular bar of malachite (47 x ...
    Category

    Early 20th Century Art Deco Brooches

    Materials

    Diamond, Malachite, Onyx, White Gold

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  • Art Deco Diamond Onyx and Platinum Bow Brooch
    Located in New York, NY
    An Art Deco platinum brooch with onyx and diamonds. The brooch has 82 calibre cut onyx stones with an approximate total weight of .40 carat, and 49 Old European cut diamonds with an ...
    Category

    Vintage 1920s Art Deco Brooches

    Materials

    Diamond, Onyx, Platinum

  • 1920s Art Deco Onyx Diamond Platinum Brooch
    Located in New York, NY
    An Art Deco platinum brooch with diamonds and onyx. The brooch has milgrain-set old European-cut diamonds with an approximate total weight of 6.50 carats, H/I color, VS clarity, with...
    Category

    Vintage 1920s Art Deco Brooches

    Materials

    White Diamond, Onyx, Platinum

  • Art Deco Diamond Onyx Platinum Barrette Brooch
    Located in Geneva, CH
    Art Deco Old mine cut Diamond and Onyx on Platinum and Gold Barrette Brooch. Circa 1930. Width: 6.60 centimeters. Height, at the highest: 0.85 centimeters. Total weight: approx. 7.7...
    Category

    Vintage 1930s European Art Deco Brooches

    Materials

    Diamond, Onyx, Gold, Platinum

  • French Art Deco Onyx and Diamonds Platinum Bar Brooch
    Located in London, GB
    Weight: 11.31gr Metal: 18kt white gold and platinum Condition: Very Good Stones: 1 Diamond • Total carat weight: 0.80ct approximately • Cut: Old European • Colour: H/I • Clarity...
    Category

    Vintage 1920s French Brooches

    Materials

    Diamond, White Diamond, 18k Gold, White Gold, Platinum

  • Art Deco Diamond Black Onyx Platinum Pin Brooch Clip, 1910s
    Located in Beverly Hills, CA
    Classy and elegant Art Deco brooch created in the 1910s. The pin is made of platinum, black onyx and accented with Old European and single cut diamonds (H-J color VS clarity, total ...
    Category

    Vintage 1910s Unknown Brooches

    Materials

    Diamond, Onyx, Platinum, White Gold

  • Art Deco Onyx and Diamond Brooch
    Located in New York, NY
    An Art Deco Diamond, Onyx and Enamel Brooch, France The oval-shaped brooch set throughout with old European, old mine and single-cut diamonds, highlighted with lines of black enamel,...
    Category

    Vintage 1920s French Art Deco Brooches

    Materials

    Onyx, Diamond, Platinum

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