Silver Stud Earrings with White Button-Shaped River Pearl 9-9.5 mmPearl Stud Earrings These stud earrings are crafted from sterling silver and feature white, button shaped cultured river pearls. Each pearl measures between 9 mm and 9. 5 mm, offering a noticeable and classic look. The setting is made from sterling silver, an alloy composed of 92. 5% pure silver, which provides a durable and bright metallic finish. To ensure they remain securely in place, the earrings are fastened with traditional butterfly backs.