726 - A pearl and diamond ring

A pearl and diamond ring Gold, fineness .800 Set with 2 grey cultured pearls (9.7 mm) and 30 brilliant-cut diamonds weighing approximately 1.50 ct. Lisbon hallmark (1938-1984), goldsmith's mark of Máximo Jorge Rocha (1956-1987) and PEDRAS FINAS trade mark Size: 15 (EU) 11.4 g VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (século XV a 1887)". Lisbon: IN-CM, 1996, nos. 4092 and 3268