Natural & Synthetic Gemstone Beads Stretch Bracelets, with Brass Beads and Natural Pearl Beads, Size: about 2-1/2 inch(6.4cm) inner diameter, bead: 4~4.5mm, brass bead: 4mm, pearl: 9~11x7~8mm.âPlease Note: These Gemstone may include Natural Howlite(Dyed & Heated), Unakite, Rose Quartz, Lapis Lazuli(Dyed), Synthetic Blue Goldstone 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.