This beautiful hand cut Kingman Turquoise is a natural non treated stone. I raised the ring shank from a flat piece of metal using one of my favorite techniques, anticlastic raising. My nature inspired designs are made of .955 Argentium silver silver and is tarnish resistant. Each form is hand raised using hundreds of blows with a hammer which creates a unique, one of a kind three-dimensional shape that is actually light weight, but looks much heavier. (Other metal options available including 14k gold, 18k gold, and 22k gold.) When you buy my designs you know this is a rare piece of art jewelry as I am one of a few people in the world specializing in this high craft technique. All of my pieces are 100% recycled green and never purchased from a mine. My work is guaranteed, see the policies link for more information. Contact me via email with any questions you have regarding my designs. I am always happy to help!