Vintage  Rhinestone Tiered Brooch Pin Jewelry Rich Dark Patina Looks Very Old

I found this at an estate sale.  It was pinned on an expensive Ladies Suit.  I have no idea if it is something really valuable or not as I have not been able to find anything else that looks like it. It has a nice patina and looks really old. There are no markings on it that I could find.

Refer to photos for condition.

Thank you.