Fabulous AB crystals/faux pearls on chains/ brooch

This is the greatest brooch and I have never seen another quite like it. There are green Aurora Borealis crystals, green crystals and faux pearls strung on metal chains. All of the chains of crystals end in either a faux pearl or crystal except 2 on each side of the center chain. There is a large AB crystal dangle in the center with a longer, smaller dangle behind it. This large piece is in great vintage condition. 3”x 3 3/4” . Bag 3