A ring 800/1000 gold set with a brilliant-cut diamond weighing approximately 2.45 ct., colour grade O~P, clarity VVS2 and strong fluorescence Portuguese rim adjustment Lisbon mark (1985-2020) Dimensões (altura x comprimento x largura) - 11 (16 mm) cm; Peso - 3,7 g. Notes: vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (1887 a 1993)", vol. II. Lisbon: IN-CM, 1996, No. 4101.