An Art Deco diamond and black onyx set platinum plaque brooch
An Art Deco diamond and black onyx set platinum plaque brooch, set with graduated circular cut and baguette shaped diamonds, and with four sections of black enamel. 4cm wide.
An Art Deco diamond and black onyx set platinum plaque brooch, set with graduated circular cut and baguette shaped diamonds, and with four sections of black enamel. 4cm wide.
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