Obsidian Skull Impermanence RingThis amazing ring features a carved obsidian gemstone in a sterling silver setting with an adjustable band. Obsidian is a very protective stone and is excellent for removing negativity; it is related primarily to the Root Chakra. The skull in Buddhism is often recognized as a symbol of impermanence. This ring is a powerful reminder to be here now and to live in the present moment; because nothing is permanent, everything is possible. Skull measures