Material:natural stonesplease according to your favourable to choice. Product name: Amethyst Quantity: 1pcs/box. Functions : this is a attach the power of the magic and healing crystal necklace jewelry,not only it be applied as a exquisite fashion style match items and can bring the positive strength and pleasure life.the crystal necklaces fit for most elegant and fashion, casual and formal dressing,it can add the confidence and bright point in fashion style. inner healing : if you have working pressure and inner anxiety,you can get crystals necklace to remove and balance your heart. Quality and service guarantee:if you have any issues about the healing crystal necklace,please contact us,our service team will provide premium service of attitude to solution one by one.