These earrings are faceted glass (in what is called a "ball" facet) and have a cobalt blue aurora borealis finish. This finish makes them sparkle more than they would otherwise, but not in multicolors, as you frequently see with AB finishes. They flash only a blue color. The goldtone metal frames are textured "ribbons." The earrings have a 1" diameter and they are clip-on style. They are in excellent vintage condition and will be shipped in a gift box.