The 7 chakras are Amethyst,Carnelian,Citrine,Iolite,Apatite ,Green Peridot and Garnet. Amethyst helps balance the crown Chakra. Carnelain Balances the root chakra(sexual energy) Citrine is for the root chakra(1st chakra) Iolite is the Third eye chakra(spititual-orientated) Apatite is for Throat chakra(helps with Public speaking) Green Peridot is for heart chakra(helps with unconditional love ) Garnet associated with the root Chakra (helps with sexuality) By wearing this pendant it will help balance all the chakras. Diameter is 1.5 inches by 1.5 inches.(4.5 cm x 4.5cm)Weighs .3 oz(9 grams) Includes a 18 inch silver plate chain