Vintage Vermeil Smokey Quartz screw back clip earrings. The approximately 18MM X 13MM smokey quartz stones are prong set in a beautiful sterling silver setting with a gold wash. The clip earrings also have an added screw back finding for added security. The earrings are marked on the back "MARVELLA STL" and "PAT240051". Weight is 11.4 grams. In excellent Vintage condition with very light age appropriate wear.