This is unique Tibetan Buddhist handmade sterling silver necklace/ charm (chain not included) with a garnet-colored stone in the middle of a double dorje design. I purchased it from a Tibetan Buddhist monastery in Dharmsala, India. The double dorje in Tibetan Buddhism represents firmness of spirit, invincibility, and power. The dorje is known as the vajra (diamond or thunderbolt) in Sanskrit and two, or double dorje is a very powerful symbol representing many things including the foundation of the physical world, enlightenment, and tantric deities. This item measures 1 inch in radius.