RAINBOW MOONSTONE SILVER RING. A lovely rectangular Caberchon Rainbow Moonstone, as been set into a simple split shank ,`double shoulder` Silver design. The gemstone has a good `blue flash` and measures 15mm x 9mm, Rainbow moonstone`s meaning is about deep spirituality and connection with inner self, and a good stone to promote inner balance in life. Moonstone has been known for centuries as a stone that reflects the philosophy of gentle moon. This ring is size 57 (or P1/2). It weights 7.75g.