Sellers can have their items authenticated by an independent expert before listing them, and buyers can get items evaluated before making a purchase to see if they're getting a good deal.
What service to use
Authentication services can determine whether an item is genuine and described appropriately.
Grading services determine the physical condition of an item and the grade given depends on the type of item being graded.
Recommended authentication and grading companies
The authentication and grading companies listed below are professional evaluators.
| Authentication and Grading Companies | |
| Autographs |
Sports autographs and memorabilia
Pre-certified autographs |
| Beanie Babies | |
| Jewelry, diamonds, and other gemstones | |
| Political memorabilia | |
| Stamps |
Misrepresented items
If an expert says that an item on eBay is not accurately represented, we reserve the right to remove it. If this happens, we may refund the listing fee to the seller.