Art Deco Old Mine Cut Diamond Clip BroochThis original geometric Art Deco Clip Brooch, in the shape of a shield or plaque, is set with 6. 50cts of exceptionally high quality Old Mine Cut and Transitional Cut diamonds. Independent grading shows F G colour and VS2 SI2 clarity. The brooch itself is made from platinum whilst the pin is made from 18k white gold. This is a typical arrangement as the gold has more spring than platinum, which is needed for a pin. Comes with antique box. Weight = 10.