EVER FAITH Black Sterling Silver 925 Princess-Cut Sapphire Color Solitaire Cocktail Ring Set Please kindly note that do not get the ring wet or in contact with chemicals or perfumes when you wear the ring. Keep them from getting scratched, as it will start the peeling off of the black coating. Just be aware that the black may eventually start wearing off. We have SGS Professional Certification for our Sterling Silver Items. Customers could go to a professional agency for testing them. 925 Sterling Silver is also suitable for sensitive skin to wear. The big cubic zirconias are pronged to the jewelry item to secure from loosing. Width: 1cm(0.4") WRAPPING: A Silver Polishing Cloth X A Gift Box X A Favor Bag. If you need assistance please contact us.