14k Yellow or White Gold White Freshwater Cultured Pearl Bow Stud Earrings with Child Safe Screwbacks These earrings are made of solid 14k gold and and fine quality white freshwater cultured pearls. Our freshwater cultured pearls are luminous and practically without blemish, making them look similar to pearls that fetch three times the price. The earrings measure 5mm (0.2 in) x 7mm (0.28 in), the weight of the earrings is 0.6g, the length of the post is 8mm.