inside diameter: about 5.5cmMaterial: 14k copper - + natural crystal100%Natural crystal, take good care of natural crystal,I hope every crystal belonging to you can bring you good luck.The colors of the goods shownby different light are different.The transparent Moonstone will give off blue and white luster under the bright moonlight, and also have the dazzling blue cat's eye effect. It looks very mysterious. Indians think that Moonstone can absorb the intelligence of the moon. In the eyebrow of Indian Buddha statues, there is a small stone, in fact, moonstone. The Indians would wear Moonstone on the yellow clothes of the gods, which is still the case today. It is said that wearing Moonstone bracelet or moonstone pendant can bring pure, happy and romantic love, and also can obtain the ability to predict the future.1.2.3.