Chalcedony Green Brings peace and stability to the heart. A power stone. Cosmo Aura: Effective for career luck and improved academic performance. Enhances concentration and supports goal achievement. Crystal: Possesses purification abilities and serves as a protective amulet. This is a natural stone bracelet combining three stones. Inner diameter: 16cm Properties of natural stones. Handmade. Please understand before purchasing. Material: Natural stone Bracelet/Bangle: Bracelet