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An Art Deco jadeite and diamond brooch, 1920s, centring on a carved jadeite plaque between geometric
An Art Deco jadeite and diamond brooch, 1920s, centring on a carved jadeite plaque between geometric motifs of laurel wreath design set with single-cut diamonds, the reverse with an openwork design of fruiting branches, mounted in platinum, length 4.4cm