Also known as Gemma’s Rings are an early astronomical instrument. The three bands represent the celestial equator, declination and the meridian. Not only does it contain the star signs of the universe, but also represent life and love. Can be worn as a ring or opened on a chain as a necklace. They run pretty small so I would go a size bigger than you normally wear. Size 5 & 7 are gold plated over sterling silver Size 6 is sterling silver