Stone: Natural Green Emerald / Zamurd Material: 14k Yellow Gold Size: All sizes are available including 5 US, 6 US, 7 US, 8 US, 9 US, 10 US, 11 US, 12 US, 13 US, 14 US, 15 US, 16 US Making: Handmade Stone Benefits: It works as a booster for creativity and strengthens ones communication skills. tourmaline is great for curing skin problems. contact me for more queries.