Sterling Silver Four Stone Quad Ring Sizes 5 to 9 in Various Gemstones Features 2 carats total weight of Four 5mm cushion-cut genuine Amethyst - Cut-by-hand facets for visually appealing dimension Cutting-edge design yet wardrobe-friendly makes this piece women's favorite All gemstones and 925-Stamped Sterling Silver metal used are authenticated and as marked. Includes Certificate of Authenticity. For Amazon-fulfilled orders Certificate is available upon request. Birthstone for the month of February Perfect gift for Birthdays, Mothers Day, Valentines, Anniversary, Bridesmaids, Graduation, Christmas or just about any other gift giving occasion.