IGI-Certified 14k Gold Round-Cut Diamond Stud Earrings (1/4 - 3 cttw, H-I Color, I1 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. Imported