A Ring 800/1000 gold set with 6 navette cut diamonds with an approximate weight of 0.60 ct., 18 square cut ones with an approximate weight of 0.70 ct. and a princess cut central one with an approximate weight of 1.22 ct. J~K colour grade and VS2 purity Portuguese signs of use Lisbon mark (post 1985), Leandro Neves maker's mark (1986) Dimensões (altura x comprimento x largura) - 16 (17,7 mm) cm; Peso - 9,8 g. Notes: Provenance: Jewelry collection of a soprano opera singer of the São Carlos National Opera House, Lisbon.