PARIKHS Round Diamond stud Plus Quality in Screw Back 14k White Gold (0.45 ctw) Beautiful Diamond stud 0.45ctw (each stone 0.225ct & 3.80mm) Image enlarged to show details. Screw Back posts allow earrings to be securely in place irrespective of any activity you have planned for the day. All our diamonds are Natural, not man-made, not lab created, conflict free diamonds Hand set in New York City in 4 Prong Setting.