These Chrysoprase stud earrings are made from a genuine Chrysoprase gemstone. It is so gorgeous with its teal green color. They are carefully made by hand using solid Sterling Silver. they have a Silver post and earring back. The stone measures 6mm in diameter, a simple yet exquisite pair of stud earrings. I have cropped the photo, so they may appear larger than they are. They come in a nice matching gift box.