18ct yellow gold. Stamped .925. AAA quality Cz. Sizes 5-9 available. B3. Fashion Wear. Please, when you receive your item, if there are ANY issues, CONTACT ME before starting a case. I am happy to help & a lot faster than going to Support. All items are video taped for quality, as well as my protection & yours. Thank you! We strive to make each purchase an excellent experience.