A Ring 800/1000 gold set with 3 navette cut diamonds with approximate weight of 1.20 ct., colour degree J~O, clarity VVS~SI Portuguese signs of use Oporto mark (post-1985) Dimensões (altura x comprimento x largura) - 14 (17 mm) cm; Peso - 16,4 g. Notes: Provenance: Jewelry Collection of a Soprano of the São Carlos National Opera House, Lisbon.