What a pretty set! This was recently acquired from an estate and looks to have not been worn much, if at all. The pieces are three-dimensional with center cabochons. The petals and cabochons are all highly polished and for an amateur photographer, it was impossible to get a good picture without camera reflections.
The brooch is 2 1/4" in diameter and the clip earrings are just under 1 1/2" in diameter. The pieces are lightweight and remind me of Eloxal, a German aluminum. The set is in wonderful vintage condition.