Unsigned Beauty - Icy Fan of Crystals on Silvertone Choker

50s style ice crystal choker, beautiful foldover novelty clasp complete with little floral design. 

Good condition, shows signs of age, crystals are yellowing slightly at their edges but it's not noticable unless you're looking really closely at them. 

I could not find a maker's mark on this anywhere. I suspect a particular designer, but regardless this is definitely a costume piece.