Three diamond brooches, mid 20th century


1st: Of ribbon design, set throughout with old brilliant and single-cut diamonds, 2nd: The pierced plaque set with three cultured pearls, with brilliant-cut diamonds between, the surround set throughout with similarly-cut diamonds, 3rd: Of openwork design, set throughout with old brilliant and rose-cut diamonds, diamonds approx. 2.50cts total, lengths: 1st 3.1cm, 2nd 4.0cm, 3rd 3.3cm (3)