14K Yellow Gold Stud Earring Aprx .50 Carat Total Weight, 4mm Each Round Black Simulated Diamond Earring. Set on Prong Setting & Friction Style Post Metal: 14K Yellow Gold Metal Stamp: 14k Features: Round Cut Back Finding: Post with Friction Back Stone: Black Cz All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.