The product is a natural star sapphire in its raw, unpolished form, sourced from the United States. This unique gemstone is known for its beautiful blue color and iridescent quality, making it a sought-after collectible for crystal enthusiasts. The natural shape of the stone adds to its appeal and authenticity, showcasing the beauty of Mother Nature's creation. Perfect for collectors looking to add a rare and unique piece to their display and also anyone who does lapidary work. 173.6 grams