Metal: 925 Sterling Silver. Report: Don’t offer certified report, But All Of my items are tested before i get it from factory, you also can retest when you get it. The quality must be guaranteed. Comment: We sell is quality. Customer is Number one Important. Welcome to give any advice, we will do best. Attention: Please open the package face to post man, make sure the item’s condition when you get. We promise our items as our description. 24K Gold, gold contents 999. Ed the standard hallmark in Chinese. 24K Gold 3D craft, gold contents 999 too. Stamped the standard hallmark in Chinese. 3D is unique craft, the inner part is hollow. Looks big, but weight light, enough strong. 18K Gold, Hallmark Au750, gold contents 750. 14K Gold, Gold contents 585. Gemstones, that as our description. Time: Monday to Saturday 4:00pm to 0:00am. We don’t work on Sunday.