Geoff Rowlandson, a cultured pearl brooch

Geoff Rowlandson, a cultured pearl and diamond brooch, 'Keep Up, You Guys', set with three graduated baroque cultured pearls in the form of a mother duck with two ducklings following behind, their eyes inset with brilliant-cut diamonds, the water's surface in white gold accented with brilliant-cut diamonds, length 8cm, inscribed 'Keep up you guys', signed Geoff Rowlandson, British hallmarks for 18ct gold, fitted case, one diamond deficient