This beautiful semi-precious Black Moonstone uses 6mm beads. This stretchable gemstone bracelet is made with all natural gemstones and is 7.5 inches long. *Double strung for durability. *7.5 inches in length. *All natural semi-precious gemstones. This picture is an representation of the type and quality of the gemstone you will be receiving. As you know, there are slight variations due to the natural character of this product. Disclaimer: Our information about crystal healing is meant to sooth mental stress, promote emotional well-being, and aid spiritual exploration. Gemstones and healing crystals are not a substitute for medical care. If you have a physical or mental illness, please see a doctor or mental health professional.