A Brooch/Double clip Art Deco style platinum and gold set with emerald cut emerald with an approximate weight of 3.20 ct. and 142 antique brilliant cut diamonds with an approximate weight of 20 ct. Portuguese 20th C. (mid) signs of use without mark, pursuant to Decreto-Lei 120/2017 of 15 September - art. 2nd, paragraph 2, point (c) Dimensões (altura x comprimento x largura) - 4 x 8,5 cm; Peso - 59,1 g. Notes: Provenance: Jewelry collection of a soprano opera singer of the São Carlos National Opera House, Lisbon.