An important Georgian emerald and diamond brooch, circa 1820's. Claw set emerald-cut Colombian emerald centre of estimated total weight 16.00 carat, surrounded by twenty-two grain and rub-over set native rose cut diamonds of estimated total weight 0.2.50 carats in an rectangular plaque design. 18ct gold and silver. Weight 21.0 grams. Length 3.2 cm. Width 2.7 cm. Gemmologist's report available.