An Emerald and Diamond Plaque Brooch Circa 1950 The 18ct white gold hand cut and sawn brooch set with an emerald cut emerald weighing 3.30cts surrounded by three round brilliant cut diamonds and four baguette cut diamonds totalling 1.16cts set to the sides, having two further claw set diamonds weighing 0.70cts with scrolled ribbon work set with seventy two diamonds, boxed