A moody, natural Montana Agate has swirls of creamy golds and browns. It is hand set by Glamrocks Jewelry into .975 Sterling Silver. It sits on a half round Sterling Silver band. We hand select these directly from a life long miner in Montana. This ring is one of a kind, is the ring shown. Ring is a size 7. Stone is 18mm It is generally believed that Montana agates were formed by wood that became buried by ash and fossilized as the result of volcanic activity in the Yellowstone Park area millions of years ago. Agate is the mystical birthstone for the month of September and the birth stone for the Zodiac sign of Gemini. Agate balances the physical, emotional and intellectual bodies, and balances and cleanses the aura. Remove when swimming or washing hands and applying lotions to avoid damaging the stone.