Pretty blue rhinestones sparkle away merrily in this pair of vintage screw-back earrings. The rhinestones are set in two tiers of hard (not flexible) off-white plastic. The earrings are 1” in diameter, but give the impression of being much larger. These little darlings are in excellent vintage condition. I estimate that they are from the 1950s, but could be as early as the 1930s when plastics were beginning to find use in jewelry.