A Ring 850/000 platinum set with antique brilliant cut diamond with approximate weight of 2.85 ct., l~m colour degree and clarity SI, weak fluorescence Portuguese signs of use Lisbon mark (post-1985) Dimensões (altura x comprimento x largura) - 16 (17,7 mm) cm; Peso - 3,5 g. Notes: Provenance: Jewelry Collection of a Soprano of the São Carlos Nacional Opera House, Lisbon.