Look at the layered high dome in this multi dimensional vintage, rare brooch! with the added details, such as the silver colored background with curved leaf design silver color wiring on the front to give the colors and stone more definition and pop.  Quite impressive size, both in diameter and dome height, the back is well done, displaying the layers.  Truly well made, see pics for condition and design and size. Looks to be mid century or before.  Really good condition, did not notice any missing stones.