Band is 1.5mm. Available in four sizes: US 5 6 7 8. Stamp: SRS 925 - our Silver Rain Silver branded stamp. Available in two finishes - the silver version is solid silver coated with precious metal Rhodium. The gold version plated with 1 micron 18ct yellow gold. 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. Not sure about your size? We got a ring sizer Silver Polish, Opal Earrings Stud, Opal Studs, Half Eternity Ring, Silver Coat, Ring Minimalist, Star Ring, Ring Sizer, Precious Metal