The brooch is likely a reproduction c.1960's-1970's, possibly an insurance remake of a much earlier piece. The pin is misshapen with the rollover catch sticking slightly and there is a significant amount of solder under the principal bloom, there do not appear to be any significant losses and all stones are present. The diamonds are all well matched and have good scintillation.
the principal round brilliant cut diamond colour H/I, clarity Si1/2
two further diamonds measuring colour H/I, clartiy Si1/2
