AN ART DECO JADE, AMETHYST AND DIAMOND VANITY CASE, BY VAN CLEEF & ARPELS  The rounded rectangular jade case, with black enamel and rose-cut diamond borders, the terminal set with a pyramid-shaped carved amethyst foliate plaque, the pearl pushpiece opening to reveal a fitted mirror and powder compartment, circa 1930, 3¾ x 2 x 5/8 ins., with French assay mark and maker's mark  Signed Van Cleef & Arpels, Paris, no. 31206
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