The Sophia Serpent RingThe Sophia Serpent Ring A pewter Ouroboros ring of a serpent swallowing its own tail, with Austrian crystal set eyes. From ancient Greek philosophy, the Ouroboros, a snake serpent eating its own tail, is the Gnostic symbol of eternity, rebirth and the unity of everything, representing both the sun and soul of the world. Approximate Size: Height 0. 12" x Width 1. 18" x Depth 0. 12" Materials: Fine English Pewter with Austrian Crystals. Brand: Alchemy