Sculpted of amethyst in this case, a worry stone is part of a tradition originating in Ancient Greece. Amethyst may assist you in happiness, calming fear, emotional storms, courage, love, peace, addiction, dreams, helps with insomnia and nightmares, and considered the "stone of peace". Rub it while cupping it in your hand to help your worries ease. 1 - 1 3/4"