This 14-karat yellow gold post earring features a 4-prong mounting that holds one 3mm round faceted gemstone. The mounting supports the stone at four points for a straight, secure setting. The pre-notched prongs help eliminate the guesswork of placing the seat for the stone, saving you time and money. The post is threaded, protecting the earring securely against loss when used with a threaded ear nut (not included). Ear posts are a classic base for any earring design.