Black Hills Gold Emerald Cut Green Helenite Sterling Silver ring with 12K rose & green gold split leaves. Helenite from rock gathered after 1980 eruption of Mt St Helens is a mixture of chrome, iron, and copper which gives an emerald green color. There is no gemstone weight for Helenite. May benefit from more thorough cleaning (silver will tarnish). In original jewelry box with Certificate of Authenticity and Lifetime Guarantee. Light normal wear. Box shows significant wear. Made in USA. From non-smoking home.