J. E. Caldwell & Co., a jadeite and diamond brooch, the pierced oval jadeite with floral carving, measuring approximately 30.00 x 20.95 x 1.33 mm, accented with round brilliant and baguette-cut diamonds, signed J.E.C. & Co., numbered W1576, estimated total diamond weight 0.50 carats, mounted in platinum, length 3.90 cm., please note that the jadeite has not been tested.