The earrings and the secure screw backs are both stamped 14k and that guarantees the quality. Made from solid 14k yellow gold. Size: 4mm Solitaire Sparkling Cubic Zirconia Stud Earrings with 4-prong Basket Setting (picture enlarged to better show product). 4mm is equal to 0.40 centimeters. Made in USA. We are an American owned and operated company. Fitting: Easy to put on, secure and comfortable to wear. Post is 8mm Long and the small backings hides behind the ear lobes blending in with the ear. Earrings come in a elegant gift box ready to give to a loved one or treat yourself.
