Antique Edwardian era Art Nouveau clear rhinestone gilt metal c clasp brooch

Antique Edwardian era Art Nouveau clear rhinestone gilt metal c clasp brooch, clear glass faceted stone in prong setting, c clasp back, gilt metal, does show age/wear, pin has some bending, finish wear, early 1900s era, has a round spring at the top so may have been used as a pendant as well, 2”x1”. 5714