Vintage 1950s fancy yellow diamond and diamond flower brooch

Vintage 1950s fancy yellow diamond and diamond flower brooch in platinum. Centred with an estimated 0.50ct round brilliant cut fancy yellow diamond in a raised claw setting, surrounded and flanked by round brilliant cut diamonds in grain and claw settings and rectangular baguette cut diamonds in channel settings, to a floral motif complete with detailed scalloped petals, openwork leaves and sprawling foliate motifs, fitted to the reverse with a secure hinged pin and safety latch. Marked 18kt gold.