Tercia Serpent Snake Crystal Necklace by Alchemy Gothic. A long, intricate pewter snake pendant necklace in a cross-shaped open knot, with a lower centrally-set dark emerald green round genuine Swarovski crystal and a matching drop below. The neck chain is intersected horizontally with a fine chain with black crystal ends to form a triangle. This serpent, evincing its three coils, symbolizes the pagan/Wiccan Rule of Three: that all energy transmitted into the world by somebody - positive or negative - is returned threefold. This spectacular sparkling serpent inspired piece is sure to please! 95mm (3.74") high and 37mm (1.46") across. Chain is 18" long plus 1" extender. Made of lead-free fine English pewter exclusively by Alchemy Gothic.