These classic studs showcase prong-set square black cubic zirconia stones. The earrings are crafted of sterling silver and secured by post with friction backs. Product Details Metal Type sterling-silver Metal Stamp 925-sterling Weight 1.6GR Length 6MM Width 6MM Back Finding post-with-friction-back Square Stud Earrings, Square Earrings Studs, Square Stud, Metal Stamping, Silver Metal, Prong Setting, Types Of Metal, Metallic Silver, Cubic Zirconia