Rhinestone Drop Earrings

Light blue, Amber, Blue and Cognac coloured rhinestones set in silver tone metal. Really stylish and pretty with a combination mechanism that is so comfortable - it is screw in combined with a spring. From an estate sale USA. The length of the drop is almost 7cms and width of the largest tear drop is 1cm.  Each rhinestone is faceted and prong set. Whilst there is no designer name to the earring back, there is a patent number. In perfect condition, gift boxed by Vintageonline.