These stunning vintage sterling silver earrings include a 925 mark and have been tested as sterling silver, with 92.5 percent purity of silver. The silver earrings show a slight aged patina, with no notable imperfections. The Art Deco style silver earrings include hundreds of marcasite crystals throughout the jewelry design, with a few missing along the edge. (These are only obvious under close inspection). These vintage earrings are sold as is. The vintage silver earrings polish and shine beautifully, as sterling silver does. These pair of sterling silver circle earrings may be shown next to a coin for size reference. A silver dollar coin measures 26.5 mm, a quarter measures 25.26 mm, a nickel measures 21.21 mm, and a dime measures 17.91 mm. These exquisite large sterling silver earrings measure almost 3 inches or 75 mm, from the top of the earring post to the bottom of the dangling accents.