Leather bracelet which can expand by expanding bracelet open and then it can become smaller by pulling the cords.  The gemstone is  Jadeite which is the Jade found in Guatemala. Jade was considered sacred by the Mayas and also by the Chinese. Jade is a rare germ material that comes in many different colors.  These particular ones are Lilac / Purple. This is the hardest color to be found in Jadeite .

This bracelet  is just beautiful. . Pictures do not do justice. Please let me know if you would like more pictures .  I wish you could really see how pretty they are . Sometimes they like more like white but when they reflect other pieces of clothing, you can see purple. Please remember that they were handmade and i have several of same type for sale but each one is unique with its own natural imperfections so you will get one of them. You can see how the bracelet becomes bigger and smaller.  You can also cut the any extra string you may not need after finding the right size for your wrist or ankle.  

The jadeite jade is genuine . All gems have a smooth surface with bright colors that reflect light like water does . They actually do like a water surface. The colors of the stones are consistent but not perfect. There may be color variations but they tend to follow consistent patterns. There are imperfections as authentic stones are more likely to have minor imperfections such as uneven shapes , dips or pitting; even after stones have been polished .