Lovely bracelet. I agree that it is Camphor glass, and has filigree setting C. 1920's, and is from the Art Deco Period. It's hard to say where it is from - it could be from many places, the US, UK, Europe. It would help to see the back and a close-up of the jump ring and clasp, but unless there is a maker's mark, I don't think we would know for sure about its origin.