Aquamarine is an excellent choice if you need help reducing your stress levels and calming your mind. This bracelet enhances your self-expression and sharpens your intellect while encouraging you to take responsibility for your own actions. This bracelet is made with 6mm Aquamarine. SIZING INFORMATION Please measure your wrist with a measuring tape to ensure the most accurate measurement. If you do not have a measuring tape, you can also use a string by wrapping it around your wrist and then cutting the piece of string. After you have your cut string, place it alongside a ruler and write down your measurement. To ensure a perfect fit, please had 0.5 inch to your wrist measurement, if you want a little room please add .75 inches to your wrist measurement.