739 - An emerald and diamond ring

An emerald and diamond ring Gold, fineness .800 Set with an oval-cut emerald weighing approximately 1.35 ct. and about 120 brilliant-cut diamonds weighing approximately 2.65 ct. Size: 15 (EU) 16.6 g VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (1887 a 1993)", vol. II. Lisbon: IN-CM, nos. 4093 and 3990