Stop moving, listing, or trading the suspect slab, then quarantine related purchases until you can audit them. A slab is a card sealed in a grading company's labeled plastic holder. One fake does not prove the whole collection is counterfeit. It does show that cards sharing its seller, purchase, shipment, or storage history deserve closer review.
Table of Contents
- Quarantine the slab and preserve evidence
- Confirm what "fake" means
- Decide how far the audit should extend
- Audit every flagged slab consistently
- Act on the audit result
Quarantine the slab and preserve evidence
Place the suspect slab in a clean sleeve or bag and store it separately. Mark the container, not the slab, with a temporary case number such as "Q-001." Do not crack, clean, polish, or alter it. Pause any sale or trade involving the slab.
If you have related listings, deactivate them without deleting photographs, descriptions, messages, or transaction records. Create an evidence folder containing: Handle related slabs as a separate quarantine group. Keep each item individually labeled so holders, receipts, and photographs cannot become mixed.
- Clear images of the front, back, edges, label, seams, and certification number
- Purchase receipts, seller details, listing screenshots, and correspondence
- The arrival date, package condition, and names of any witnesses
- Notes explaining who identified the concern and which features prompted it
Confirm what "fake" means
A fake slab can contain a counterfeit card, a genuine but altered card, a copied label, a counterfeit holder, or parts taken from different genuine slabs. A tampered holder may also contain a lower-grade or entirely different card. Check the certification number through the grading company's official lookup system when available. Compare the recorded card, grade, qualifiers, and label details with the slab in hand.
A matching lookup is not proof of authenticity because counterfeiters can copy valid numbers. Examine several features together: Do not reject a slab because one detail differs from a current example. Grading companies change labels and holders, while normal production variation affects cards. Compare it with documented examples from the same company and holder period, then ask the grading company about any unresolved mismatch.
- Card name, set number, language, edition, and artwork
- Font shapes, label spacing, logo placement, and printed grade
- Holograms or security elements appropriate to that holder generation
- Plastic clarity, welds, seams, internal supports, and signs of reopening
- Card stock, borders, print pattern, holo effect, texture, and back colors
Decide how far the audit should extend
Build the audit around shared risk, not panic. Start with slabs bought from the same seller, in the same order, or through the same intermediary. Then review other items whose purchase history is missing or unusually vague. Use practical priority groups: Next, consider value and ease of resale.
Expensive, liquid cards warrant earlier review because an authenticity mistake can cause greater harm. Low-value slabs still need checking when they share the suspect source. Do not assume consecutive certification numbers prove fraud or legitimacy. Submission batches can contain sequential numbers, but numbers can also be copied. Treat numbering as a link worth investigating, not a verdict.
- Highest priority: Same seller or shipment, repeated label defects, copied-looking certification data, or prices far below the market at purchase
- Medium priority: No receipt, uncertain ownership history, private cash purchase, or holder damage
- Lower priority: Strong records from unrelated established sources with no physical warning signs
Audit every flagged slab consistently
Assign each slab an inventory number and use the same inspection process every time. Record "pass," "inconclusive," or "fail" for the card, label, holder, certification record, and purchase history separately. For each slab: Weight, holder dimensions, phone scans, and automated image tools may support an inspection, but none should decide authenticity alone.
Small manufacturing differences, equipment error, lighting, and image compression can create false alarms. For important cards, seek an opinion from the company named on the label or another established authentication service. Confirm submission instructions through the organization's official channel before sending the slab, and retain photographs and tracking information.
- Photograph it under diffuse light and angled light without filters
- Match its certification record to the exact card and stated grade
- Compare it with reliable examples from the same holder generation
- Inspect seams and corners under magnification for glue, gaps, stress, or tool marks
- Check whether the card's print, texture, holo pattern, and set details are internally consistent
Act on the audit result
Return a slab to normal inventory only after its identity, holder, certification record, and purchase history are reasonably consistent. Keep the audit record attached to its inventory entry so the same concern does not need to be reconstructed later. Leave an inconclusive slab quarantined.
Do not describe it as authenticated, and disclose the unresolved concern if you transfer custody for inspection. A low purchase price or convincing seller story does not resolve contradictory physical evidence. If a slab is confirmed counterfeit or tampered with: Do not destroy or crack the slab while a refund, payment dispute, insurance claim, or fraud report remains possible. Altering it can erase evidence needed to connect the counterfeit to its seller or shipment.
- Do not sell, trade, or give it away as a collectible
- Save the written finding, photographs, packaging, and transaction history
- Notify the seller, marketplace, payment provider, and named grading company where appropriate
- Check return and dispute deadlines immediately because they vary
- Follow written return instructions and use tracked shipping if a return is authorized
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