750°/°° white gold transformation brooch decorated with two stylised volute-shaped wings, paved with rose-cut diamonds and finished with thirty old-cut diamonds totalling approximately 2.4 cts and centred with two cushion-cut diamonds calibrating 0.8 ct each (6.5 x 7 x 3.8 mm). Circa 1880. Gross weight: 37 g. In a Beaumont jewellery box. With various brooch, comb and screwdriver accessories.