Natural & Synthetic Mixed Stone Plain Band Ring for Women, Size: about 0.63~0.74 inch(16.1~18.7mm) inner diameter, 0.22~0.24 inch(5.5~6mm) thick.âPlease Note: These Gemstone May Include Natural Yellow Turquoise(Jasper), Natural Chinese Southern Jade, Natural Black Labradorite, Natural Dalmatian Jasper, Natural Sesame Jasper, Opalite 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.