Jewellery
Art Deco Platinum, Diamond and Black Onyx Bow Brooch The openwork diamond-set oval-shaped mount enhanced by ribbons of black onyx, surmounted to the side by a diamond-set bow, suspending two flexible ribbons, accented by slender bands of black onyx, totaling 172 old European-cut diamonds approximately 4.00 cts., circa 1920, approximately 12.2 dwt.
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