Vintage silver flower brooch large Aurora borealis stone

Silver tone metal flower brooch with Aurora borealis rhinestone center. This silver tone molest metal flower that is fairly large, approximately 3 inches across this is vintage and it does show wear of metal which shows the copper tone underneath on the back and on two petals as shown in pictures. Please zoom in. It does not take away from the beauty of this. I found it online for 45 at a starting price at auction. This could easily be touched up with some silver polish but it is pretty just the way it is. It has a pronged center and it has a 3-D effect with the petals. Vintage. Floral. Fun. Beautiful. Unique. Price reflects copper under tone from paint fade.