A Pair of Earrings 500/1000 platinum set with 2 oval cut rubies, 2 square cut diamonds with an approximate weight of 0.24 ct., 2 rectangular cut diamonds with an approximate total weight of 0.30 ct., 72 8/8 cut ones with an approximate weight of 2.50 ct and 4 brilliant cut ones with an approximate weight of 1.05 ct. Portuguese signs of use Lisbon mark (1938-1984), Carvalho & Castro Ldª makers' mark (1951) Dimensões (altura x comprimento x largura) - 3,6 cm; Peso - 13,8 g. Notes: Provenance: Jewelry collection of a soprano opera singer of the São Carlos National Opera House, Lisbon.