A Ring 500/1000 platinum set with 15 baguette cut emeralds and an emerald cut one (the largest one has the approximate weight of 1.20 ct) Portuguese signs of use Lisbon mark (1938-1984), LEITÃO & IRMÃO makers' mark Dimensões (altura x comprimento x largura) - 13 (16,7 mm) cm; Peso - 11 g. Notes: Provenance: Jewelry collection of a soprano opera singer of the São Carlos National Opera House, Lisbon.