Natural Jet Semi-precious Gemstone Round Beads Sample Strand / Bracelet Gemstone quality: Grade A Quantity: 1 bracelet in total Bracelet size: approx 7.5 inches with elasticated string Stone size: approx 6mm (approx 27 - 29 beads), 8mm (approx 25 beads) or 10mm (approx 17 - 19 ...Natural Jet Semi-precious Gemstone Round Beads Sample Strand / Bracelet Gemstone quality: Grade A Quantity: 1 bracelet in total Bracelet size: approx 7.5 inches with elasticated string Stone size: approx 6mm (approx 27 - 29 beads), 8mm (approx 25 beads) or 10mm (approx 17 - 19 beads), please choose your preferred option from the drop down menu under the item title Beads sizes and colours do vary between different gemstones or even batches for the same gemstone. WARNING: the product is not suitable for children under 6 years of age.