14k Yellow or White Gold Tiny Brushed Heart Stud Earrings with Child Safe Screwbacks These earrings are made of solid 14k gold and are stamped "14k". These adorable earrings make a great gift for children but can be worn by anyone with a bit of whimsy. The earrings measure 4mm (0.16 in) x 4mm (0.16 in), the weight of the earrings is 0.3g, the length of the post is 8mm.