Circular, about 5/8" diameter with eight spokes. The concept of the Rota Fortunae, the Wheel of Fortune, dates back millennia with the Roman goddess Fortuna capriciously deciding the fate of men with a spin of her wheel, often sweeping them up to unprecedented new wealth and prosperity. It has proven to be an enduring symbol and concept even through the Christianization of Rome and into the Middle Ages as evidenced by the highly influential works of the late Roman philosopher and statesman Boethius. A fine ancient piece deeply imbued with historical meaning. Professionally refurbished with the pure silver overlay restored on a gilt neck chain for contemporary wear. Gift boxed with a certification of authenticity.