This is a genuine Amethyst Crystal Pendulum. Each piece ranges between 1 inch to 1 1/2 inches although slight size variations are to be expected. The pendulum has a chain attached with an Amethyst bead at the end. There are many uses for pendulums, including divination, dowsing, and answer finding techniques. People use pendulum dowsing to locate items, test for food freshness and bacteria, compatibility between people, and choose careers, investments and more. In addition, Pendulums are available in a variety of styles and gemstones. While this particular one is Amethyst, there are many others including Crystal Quartz, Bloodstone, Moonstone, Tiger's Eye, Rose Quartz, and others. Find the one that is best for you by experimenting with different stones and styles.