Grading companies publish a lookup for their certificate numbers. PSA is the most common for cards. Use the company's own site, never a link sent to you.
Read the certificate number from the label in the listing photos, not from the description alone.
Type it into the grading company's official lookup page yourself.
Check the item, year, and grade returned match what the listing claims.
What to compare
- Does the certificate number in the photo match the one in the description?
- Does the lookup describe the same item, year, and grade?
- Does the holder in the photos look like that company's current holder?
- Are there several photos of the label, or just one at an angle you cannot read?
A certificate number proves a slab with that number exists. It does not prove the slab in the photo is that slab. Match the details, and be suspicious of a number you cannot read in any photo.
eBuy does not run these registries and cannot confirm the accuracy of a third-party lookup.