Buying graded trading cards on eBay: fake slabs eBay can't catch

Does eBay authenticate trading cards, and at what price?

Yes, but its own pages don't agree on where the line sits. eBay's trading cards page states the program covers cards "$250 and above for ungraded cards, and $250 and above for autograph, relic, and other graded cards." eBay's Authenticity Guarantee help article says "Cards must have a Buy It Now price of $200 or more, or sell in an auction for $200 or more." Both pages were live when we checked them. Neither is a summary written by someone else. Both are eBay's own words, and they don't match.

Scope narrows things further than price does. Coverage is single cards only, not sets, lots, kits, decks, boxes or packs. A $900 single card qualifies. A $900 sealed box of the same set doesn't. And the program only accepts graded cards already in a PSA, SGC, CGC or BGS holder. eBay names GMA, HGA, KSA, WCG and GBA as graders it won't accept, so a slab from one of those doesn't get you into the program no matter the price.

Two more things worth knowing before you bid. The guarantee isn't a grade: PSA is eBay's authenticator for cards and performs no grading or regrading during the process, it checks that a graded card's holder hasn't been tampered with and that an ungraded card matches its description. And you can't take a bid back in this category. Bid retraction is narrow everywhere on eBay, but eBay states outright that bids in Trading Cards cannot be retracted at all. Authentication happens after the sale closes, so the decision has to be right at the moment you commit to the bid, not after a slab arrives.

What PSA's grading scale actually measures

PSA grades on a 1 to 10 scale, and a 10 means Gem Mint. The number comes from four things: centering, corners, edges and surface, and the final grade generally reflects the worst of the four rather than an average.

• Centering is how evenly the image sits inside the border, measured as a ratio between opposite sides. A Gem Mint 10 needs roughly 55/45 or better front to back, tightening from the 70/30 PSA allows at a 7. Centering is the one defect that's baked in at the print run and can't be fixed by careful handling.
• Corners are usually the first thing to wear. A 10 needs all four sharp with no fraying or rounding, and one soft corner alone is often enough to knock a card down to a 9.
• Edges get checked for chipping, rough cuts and white specks along a dark border, a defect collectors call edge whitening. A 10 needs edges that read as flawless even under magnification.
• Surface covers scratches, print lines, staining and gloss. Holographic surfaces show scratches especially easily, which is part of why a raw holo card is harder to grade high than a plain one.

None of these four is fixable after the fact. A card that's already been handled has already taken its grade ceiling with it, which is the entire reason collectors store new pulls in a rigid holder within minutes and stop touching the surface with bare fingers.

Fake slabs are a real category of scam, not an edge case

A counterfeit PSA holder with a real-sounding label is a different problem than a miscategorized listing, and it's worth treating as its own risk. PSA's own certification lookup lets you enter the number printed on the label and see the card, set, grade and any qualifiers PSA has on file. Run every graded card you're seriously considering through it before you bid instead of after the slab arrives.

A matching cert record narrows the risk. It doesn't remove it. Certification numbers are public once a card has been graded, and a counterfeiter can print a fake label carrying a real number lifted from a genuine card that graded the same way. The listing photo and the online record can agree perfectly while the physical slab in front of you is still fake.

That's why the physical slab is worth checking too, and none of these checks require special equipment:

• The case should be crystal clear, with tight, ultrasonically sealed seams. A cloudy or yellowed case, or one with a visible glue line along the edge, is a tell.
• PSA's raised logo sits molded into the plastic on the front and back, bottom right. You should be able to feel it with a fingertip. A flat, printed logo instead of a raised one is wrong.
• The label print should be crisp, with PSA's specific red and the correct font. Blurry text, smeared ink or an off-shade red are all signs worth pausing on.
• The hologram should shift color when you tilt it, cleanly applied with no air bubbles or peeling at the edges. A hologram that only shows one flat color under tilt, or looks printed rather than layered, is a tell.

None of these is conclusive by itself, the same way no single tell settles anything in most authentication problems. What moves the needle is a cert lookup that matches plus a slab that passes the physical checks, taken together instead of alone.

Raw versus graded, and why the price gap is the whole point

A raw card and the same card in a PSA 10 holder are not interchangeable purchases, and the price difference between them is the reason the grading industry exists at all. A raw card's condition is a claim in the listing description. A graded card's condition is a number backed by a company whose entire business is that number being trustworthy.

That gap creates its own scam shape: a seller who buys a raw near mint card cheap, submits it for grading, and gets back something lower than hoped can crack the card back out of a low grade holder and sell it as raw, hoping the PSA history doesn't follow it. Nothing about that is illegal, and it's disclosed nowhere unless the seller says so, which sellers doing this generally don't. A card's cert number stays looked up on PSA's site forever once it's been graded, so if a seller mentions "previously graded" or you notice case-shaped edge wear on a supposedly ungraded card, a quick search on the card's identifying details for a matching cert history is worth the two minutes.

Population reports add useful context here too. PSA publishes how many copies of a given card exist at each grade, and a card with a thin population at 10 but a deep bench at 9 tells you something the price alone won't: that last grade point is genuinely rare, and a seller asking a 10 price for a 9 card that's been cracked out is asking you to fund the gap.

Where FindersKeepers fits, and what it can't tell you

None of what a price-tracking tool does replaces a cert lookup or a magnified look at a corner. What it can do is tell you whether an asking price sits apart from the rest of the page it's competing on.

FindersKeepers compares a listing's asking price against the asking prices of similar active listings on eBay US, and it needs at least five comparable listings before it will label anything. A HOT DEAL means 20 percent or more below the average of that set, and a Good Price is 10 to 20 percent below. It's a plain average of the comparable set, not a sold-price comparison, because we have no sold-price data at all. How that limitation applies to judging any eBay price covers the general case, and it applies here without exception.

That limitation matters more in trading cards than in most categories, because two listings with the same title, "PSA 10," can be genuinely different products depending on the population data, the specific set, and whether the slab is real. A deal score comparing five listings of the same card at the same grade can only see the price each one is asking. It can't see which of those five sellers is the one running the crack-and-resell play above, and it can't tell a real slab from a convincing photo of a fake one. Run the search, without an account, let it flag the outlier, and then do the cert lookup and the physical checks on whichever listing the score actually flags. The score narrows down where to spend your attention. It doesn't replace spending it.

Saved searches close the other half of the gap. New graded copies of a specific card get listed and sell within hours in an active set, and a search you check manually once a day misses most of what appeared and sold between visits. We re-run every saved search once an hour and email what's new, on eBay US only, with no account fee and no eBay login required to search.

The two halves of buying a graded card well don't overlap: knowing whether the slab is real, and knowing whether the asking price is competitive. Skipping either one is how the crack-and-resell trade and the fake-slab trade both stay profitable.