I can't provide a certificate because I threw it away. I will also include a 50cm silver 925 chain. The chain is not Chrome Hearts. Because it has been newly processed, I was unable to get it authenticated. Due to the high value of the transaction, returns are not accepted. [Product Name] Chrome Hearts Keeper Pendant Silver 925 50cm Chain [Product Description] I purchased this from RINKAN about two years ago. I have a purchase confirmation photo, so it is definitely authentic.