Material: Amethyst 9.5mm Origin: Brazil Size: Approximately 9.5mm (±0.5mm) Wrist size: Approximately 16cm (elastic) Weight: Approximately 25g Features and Meaning: This amethyst has a transparent and deep purple color. It has few cracks and a beautiful color with a mellow luster. Recommended as a gift, as it is the birthstone for February. Amethyst, known in Japanese as "Purple Crystal," is the name given to purple quartz. The purple color is believed to be caused by trace amounts of iron ions. Amethyst is considered the "Guardian Stone of Love" and the "Stone that Protects True Love." The purple color of amethyst has been loved by many people since ancient times. In Japan, it is considered the most noble color and has been highly valued in religious ceremonies. It is also the highest-ranking color variation of quartz. Furthermore, as the "Guardian Stone of Love," it is said to give the power to protect true love by fostering a "heart of love and compassion." Product Number: B1493-95