The Essential Blackstone Stretch Bracelet is created with the purpose of helping you with protection, strength, and harmony. Blackstone is associated with the earth's energy and is believed to aid in grounding, releasing blockages, and promoting clarity. The deep black color symbolizes mystery and protection. Crafted with care and precision, this bracelet is not just a piece of jewelry; it is a statement of power and style. Material 18k gold over sterling silver (925) Stone Blackstone Size 18 cm unstretched circumference Closure Stretch bracelet Due to the one-of-a-kind nature of the stones, exact colors and patterns may vary slightly from the image shown. The stones are natural and some have been dyed and heat-treated to enhance color — a common and accepted practice in natural stone jewelry.