I have a pair of vintage 4 leaf clover screw back earrings. The leaves are dark green enamel. There’s a small clear stone in the center that I assume is fake. The backs are silver tone but I don’t see any maker’s marks or metal content markings so I don’t know what the metal actually is. They are about 5/8 inches across. See my other ads for jewelry, artwork, home decor and more.