Geoff Rowlandson, a cultured pearl and diamond brooch

Geoff Rowlandson, a cultured pearl and diamond brooch, 'Art Deco Lamp', designed as a lamp, its stem composed of a branching cultured pearl, to a striped base, the lampshade set with brilliant-cut diamonds, suspending cltured pearl and onyx bead pendants, length 6.4cm, signed Rowlandson, numbered B564, British hallmark for 18ct gold, fitted case stamped Geoff Rowlandson