Diamond double-clip/brooch, circa 1930

The oblong-shaped brooch separating into a pair of semi-circular clips, set with 2 square emerald-cut diamonds weighing approximately 2.00 carats, 42 old European-cut diamonds weighing approximately  9.00 carats, 34 baguettes weighing approximately 3.90 carats and 66 single-cut diamonds weighing approximately 1.00 carat, mounted in platinum.