Crystal and Pearl Brooch

2 1/2 diameter brooch with crystals and pearls. I assume these are glass pearls. This piece is well made, no visible designer marks and I have no information on the maker. I believe the base is brass, with a green patina finish. The crystals and pearls are glued in (and feel like they are in place well). There is a very slight scratch on the center pearl, however as you can see in the photo, it is not easily visible. This is a beautiful statement piece.