I have made this bracelet using lapis lazuli gemstone which are 4 mm and 6 mm in size. This is a stretch bracelet therefore no fiddly clasp. Measure your wrist and add half an inch - 1 inch for the perfect fit. Bracelet sizing 6.5 inches - slim adult/teen 7 inches - small 7.5 inches - average 8 inches - a little bit bigger.
