Floral brooch in 18kt yellow gold and platinum, 50's. Leaves with diamonds, rose cut. Central flower

Floral brooch in 18kt yellow gold and platinum, 50's. Leaves with diamonds, rose cut. Central flower with diamond, brilliant cut, weighing ca. 0.22 cts, set in claws. Flowers with synthetic round rubies and central diamonds, weight ca. 0.30 cts., brilliant cut, color J, purity SI1. The loop that holds the stems is decorated with diamonds weighing ca. 0.10 cts. It does not retain a ruby. Needle clasp.
Measurements: 6 x 4.5 cm.