Sterling Silver Vintage Inspired Green Onyx CZ Ring, Adjustable Size, Natural Green Onyx Ring, Vintage Style Onyx Ring Size: 1.2mm thick band. The ring is adjustable and available in two sizes: Small/Medium: Suitable for US 5-7 Medium/Large: Suitable for US 7-9 Can be worn on its own or you can stack it up! Stamp: SRS 925 (SRS is our branded stamp for Silver Rain Silver). The ring is made with solid sterling silver and best kept in a sealed bag when not wearing. It's hypoallergenic. In the event of tarnishing, simply clean your silver with silver polish cloth. Packaging: All our jewellery comes with our branded velvet bag so your item is ready to be gifted. To read more about our production process visit our blog: https://www.silverrainsilver.com/blogs/production-methods/production-method-1-lost-wax-casting Instagram: Silver_Rain_UK