The rainbow moonstone used has little schiller, but it is milky white to transparent. A round-cut stone that faintly shows a blue light when viewed from different angles has been made into a ring. ^_^ Materials: Natural Stone - Rainbow Moonstone: 6mm Ring - Brass, [Plated] Nickel-free: Size 11, Free Size *Please be aware if you have allergies. *Please refrain from purchasing if you are concerned about inclusions or chips unique to natural stones. *Each item is carefully packaged and delivered to our customers. *Please note that the color and shape may differ due to the camera. *Nickel-free plating is used. Therefore, this product is less likely to cause allergies compared to plated metal fittings. However, due to the characteristics of nickel-free plating, there are disadvantages such as uneven color, fine irregularities and roughness on the surface, and faster deterioration of the plating compared to plated metal fittings.