Various shapes of natural moss agate stones create a wonderful look in this necklace. Moss agate is a multi-shade of green that resembles moss or trees from a distance. Moss agates are considered the most powerful of the agates. It was the agate of warriors. Moss agate is the most powerful of the agates that helps balance emotional energy for the wearer. The necklace is 19 inches long and set in sterling overlay.