AN ART DECO DIAMOND AND PEARL PIN, BY KOCH | Christie's
AN ART DECO DIAMOND AND PEARL PIN, BY KOCH Designed as a single-cut diamond openwork plaque, centering upon a white button pearl within a pear and single-cut diamond scroll, to the old mine and European-cut diamond trim, mounted in white gold, circa 1920 Signed Koch
Bonhams : A diamond, nephrite and green stone articulated bow brooch
A diamond, nephrite and green stone articulated bow brooch, centering a bezel-set oval cabochon nephrite, with round and baguette-cut diamonds and green stone accents; estimated total diamond weight: 6.20 carats; mounted in platinum; length: 2 3/4in.
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