A Ring, Art Déco, gold and platinum, set with 12 rose cut diamonds and 9 ancient brilliant cut diamonds with the approximate weight of 1,10 ct., Lisbon hallmark (1887-1937), Joaquim da Cunha Oliveira maker's mark (1944-1963), Portuguese, small bruises Dimensões (altura x comprimento x largura) - 12 (16,5 mm) cm; Peso - 10,2 grs.