18k White Gold 3-Prong Round Diamond Stud Earrings (1/2 cttw, G-H Color, SI1-SI2 Clarity) As timeless as they are radiant, these prong-set diamond stud earrings are the ideal complement to any ensemble. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Domestic Carat weight listed is the total for both studs.