An Art Deco jade brooch, the jadeite jade carving depicting a boat being rowed and steered across water framed with an oriental openwork diamond border, set in platinum. Sold in a fitted box. Accompanied by a report from the Gem & Pearl Laboratory stating that the jadeite jade was found to be natural, free of treatment. Approximately 5.2 cm long & 2.3 cm high. Circa 1920.