A MID-20TH CENTURY DIAMOND BROOCH, FRENCH, CIRCA 1950 Of openwork bow design, the central old

A MID-20TH CENTURY DIAMOND BROOCH, FRENCH, CIRCA 1950Of openwork bow design, the central old cushion-shaped diamond weighing approximately 1.40ct, between brilliant and single-cut diamonds, accented with further single-cut diamonds within star motifs, to zig-zag and scrolling detailing, mounted in platinum, remaining diamonds approximately 3.50cts total, French assay mark, width 4.7cm Condition Report: Diamonds: principal diamond approx. 1.40ct, weight based on estimated dimensions of 7.35x6.36x3.82mm, estimated colour H-I colour, estimated clarity VS2-SI1 with some minor nibbling to girdle. A few of the remaining diamonds with minor nicks and chipsWith dog's head for French platinumWith possible repair work on the reverse. Some wear including minor scratches. The clasp functions and appears secure.Total weight approximately 22.7gms.