These are A-Grade and large rough Amethyst chunks imported from Brazil. Each piece measures between 2 inches to 3.5 inches or more. You will have the option to purchase a 1 piece sample or buy in bulk weight for a much better deal. These are beautiful large crystal specimens to hand-polish or tumble. These are pure high energy stones to use for all kinds of metaphysical rituals like crystal healing, reiki, chakra balancing, meditation, tarot-card reading, spell-casting and more. These are also great for all kinds of crystal crafting ventures, unique art projects and art installations.