Natural Mixed Stone Round Beaded Stretch Ring with Moonstone, Gemstone Jewelry for Women, Size: about 0.72 inch(18.2mm) inner diameter, beads: 0.12~0.24 inch(3~6mm).âPlease Note: These Gemstone May Include Natural Carnelian, Natural Grey Agate, Natural Agate, Natural Crazy Agate, Natural Indian Agate and so on(as the picture shows). but as it is a mixed product, the stone type is delivered randomly, please refer to the actual product delivered.