authentic vtg native American Navajo sterling turquoise twisted ring 4- weighs 6.1 GR on the jewelry scale- the top is 1" tall, and it is sterling silver, though not marked has some sort of signature on the back as shown. I cleaned it with silver polish because it was black.. in excellent preowned condition Also, Please feel free to ask questions before you buy. We would prefer not to disappoint you ! Thanks for shopping at the Cats Pajamas! CONDITION: All items are sold as is and leave from a smoke-free, pet-free environment. SHIPPING: We offer 2 day handling normally and can send Express or FedEx as well. INTERNATIONAL SHIPPING: Please note, you will be responsible for import taxes or other customs fees (if applicable) for your package. We cannot provide inaccurate information to customs officials. About Us: The Cats Pajamas has been in operation since 1980 and on-line since 1996. Miss Kitty has built a completely devoted clientele, including clothing designers, film costume designers, and lots of wonderful customers like you! Please, let me know if there are any issues with your order. LOVE RETRO!