14K Yellow Gold 1/2ct TW Round Diamond Stud Earrings with Screw-Backs IGI Certified 1/2ct total diamond weight (means 1/4ct each diamond.) 14k Yellow Gold settings with screw backs Velvet Earring Box- Gift Ready IGI Certificate Included. Each earring is individually tagged by IGI of New York All of our diamond suppliers state that to the best of their knowledge all diamonds are conflict free.