Adjustable Natural & Synthetic Mixed Stone & Miyuki Seed Braided Beaded Bracelet for Women, Size: about inner diameter: 45~74mm, 1.5~6mm wide.âPlease Note: These Gemstone May Natural Prehnite, Aquamarine, Mookaite, African Turquoise(Jasper), Synthetic Sunstone 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.