Natural Stone Lapis Lazuli Ring Size: Approximately 8.1mm in diameter * 3mm thick; Ring Size: Free size, adjustable. Metal Material: Alloy s925 Silver; Comes with a pouch, product number A4468; Weight: Approximately 1.92g; Lapis Lazuli is a rare gemstone, and ancient artifacts of blue lapis lazuli are often precious. Lapis lazuli is so popular because it is one of the seven treasures in Buddhism. If you overuse your eyes, lapis lazuli can relieve eye strain and fatigue. Close your eyes and lie down, place the blue lapis lazuli on your eyes, and by taking slow, deep breaths, the blue indigo light will penetrate the eyeballs, reducing eye fatigue and protecting your eyesight. ■The color of the photo may differ slightly from the actual product due to the shooting environment. Instant purchase OK. Thank you!