Natural & Synthetic Mixed Gemstone Beads Braided Bead Bracelets, Multi-strand Bracelets, Size: about 2-1/8~3-1/8 inch(5.5~8cm) inner diameter, beads: 0.31 inch(8mm).âPlease Note: These Gemstone May Include Non-Magnetic Synthetic Hematite, Natural Obsidian, Synthetic Turquoise(as the picture shows). but as it is a mixed product, the stone type is delivered randomly, please refer to the actual product delivered.