A diamond brooch and pair of cultured pearl and diamond earrings, comprising: a brooch of bar

A diamond brooch and pair of cultured pearl and diamond earrings, comprising: a brooch of bar design, centring on a rose-cut diamond in a foiled setting, mounted in gold, length 5.9cm, Dutch assay marks, case stamped C de Jong Czn, Juwelier, Haarlem; and a pair of earrings, each set with a cultured pearl beneath a trio of brilliant-cut diamonds in gold collet settings, length 1.5cm each, post fittings