Vintage Large Green and Blue Rhinestone Brooch

Large vintage blue and green rhinestones brooch that is just stunning and glistens in the light. It doesn't have any missing crystals. I know that these can be rare and very pricey, but I do not know how to confirm, so I will give you a deal! 

*I do not claim anything to be real gold or silver unless it is marked, and I have no way of testing it.