IGI-Certified 10k Gold Princess-Cut Diamond Studs (3/4 cttw) The princess cut of these diamond earrings modernizes the traditional stud, making for a beautiful marriage between contemporary and classic. IGI-certified jewelry has been assessed and authenticated by the International Gemological Institute's expert gemologists. 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.