Peridot, Aquamarine, Citrine, Iolite, Garnet and gives overall balance and stability. Gives courage and clarity to your life decisions. Increases your spirituality and compassion. Helps you achieve your goals and gives you a push to follow through. Step into joy and well being! This necklace has a Sterling silver lobster clasp and is adjustable to wear from 15 1/2in-17 3/4in.