Diamond platinum brooch - 1930s

openwork geometric shape with diamond ribbon motif. In the centre three brilliant cut diamonds, respectively: one round brilliant cut diamond approx. 1.25 ct, I-J, VS; one round brilliant cut diamond approx. 0.60 ct, H-I, VS; one round brilliant cut diamond approx. 0.60 ct, H-I, I1. Other baguette cut, round brilliant cut and huit cut diamonds totalling approx. 14.00 ct.
Dimensions 7 x 4 cm. Weight 31 g.
Item condition grading: **** good.