IGI Certified 14k White Gold Round Cut Diamond Stud Earrings (2 cttw, K-L Color, I1-I2 Clarity) Classic solitaire studs to complement any style and occasion. IGI-certified jewelry has been assessed and authenticated by the International Gemological Institute's expert gemologists. Screw-post backings. Diamond nestled in classic 4-prong setting. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Made in United States