CollectionPlnr

How to Spot Fake Graded Slabs

By Alexis Pratsides, FounderUpdated

The Rise of Counterfeit Graded Slabs

Graded slabs from PSA, CGC, Beckett (BGS/BVG) and CSG carry a price premium precisely because they represent third-party authentication and condition assurance. That premium makes them a target. Since 2023, the market has seen a significant increase in counterfeit slabs - both entirely fake slabs housing a fake card, and genuine-looking slabs housing a real but lower-grade card than the label claims. In 2025 and 2026, some "super fake" slabs have been produced with convincing laser-printed labels and acrylic cases that replicate the weight and feel of genuine slabs reasonably well.

The fraud typically takes one of three forms: (1) a completely fabricated slab with a fake label and a fake card; (2) a re-cased slab where a genuine lower-grade slab was cracked open and re-sealed with a modified or reprinted label showing a higher grade; (3) a genuine slab with the label cert number not matching the card inside, achieved by swapping cards between genuine slabs. All three require different detection approaches.

The good news is that every major grading company maintains an online cert lookup database that provides the definitive answer - if you know how to use it correctly.

Step 1: Cert Lookup - the Most Important Check

Before any physical inspection, do a cert number lookup. This is the single most important authentication step and it costs nothing:

  • PSA: PSACertification.com - enter the cert number from the label. The result shows the card description, grade, and a reference image of the original submission.
  • CGC: CGCCards.com/certlookup (for trading cards) or CGCComics.com/cert for comics. Enter the cert number and verify the label details match exactly.
  • Beckett (BGS/BVG): BeckettGrading.com - cert lookup shows the item, subgrades, and grade.
  • CSG: CSGCards.com/certlookup.

Key things to verify on the lookup result:

  • The card name, set, and year exactly match what is in the slab.
  • The grade shown online matches the grade on the physical label.
  • The cert number lookup returns a result at all - if it returns nothing, the slab is almost certainly fake.
  • The reference image (where available on PSA) matches the specific card in the slab - check centering, surface marks, and borders. A genuine higher-grade card would not match the reference photo of a lower-grade submission.

Note: cert numbers that return no result online could indicate the database has not yet synced a very recent submission, but when in doubt, treat a missing result as a red flag and contact the grading company directly before completing any purchase.

Step 2: Physical Label Inspection

Grading company labels use specific fonts, colour profiles and holograms that are difficult to replicate perfectly. Check the following:

  • Font sharpness: Genuine labels are printed with commercial-grade precision. Under a loupe or macro phone camera, text should be crisp with no jagged edges or slight blurriness. Grade numbers in particular should be bold and razor-sharp.
  • Holographic security features: PSA labels carry a rainbow hologram sticker; BGS uses a holographic strip embedded in the label. Counterfeits often use flat foil stickers that do not shift colour correctly as you tilt them, or reproduce the hologram pattern incorrectly.
  • Colour accuracy: PSA uses a specific red and blue palette. BGS uses a distinct gradient. Fakes often have slightly washed-out or over-saturated colours due to inkjet printing. Compare to confirmed genuine slab photos from auction records.
  • Label alignment: The label should be perfectly centred and level inside the slab, with equal margins on all sides. A crooked or slightly off-centre label is a warning sign.
  • Barcode: Scan the barcode if one is present and see if it resolves correctly on the grading company's site or returns the correct cert information.

Step 3: Slab Quality and Construction

Genuine slabs are precision-manufactured from high-quality acrylic polycarbonate. Examine the slab itself:

  • Seams: Genuine PSA slabs have an almost imperceptible seam around the perimeter when held under raking light. Counterfeit slabs frequently show visible glue lines, uneven seams, or gaps at the corners where the two halves join.
  • Clarity: The acrylic should be optically clear with no hazing, micro-scratches from manufacturing, or yellowish tint. Hold the slab up to a window and look through it - genuine polycarbonate is remarkably clear.
  • Weight: Genuine slabs have a specific heft. A PSA card slab weighs roughly 28-30 grams depending on the card size. Fakes made from cheaper plastic often feel lighter or flimsier. A scale helps here.
  • Sound: Tap the slab gently on a hard surface. High-quality polycarbonate produces a solid, slightly dense sound; cheap plastic sounds tinny or hollow in comparison.
  • Card movement: The card inside a genuine slab should have minimal movement - a slight rattle is normal, but the card should not visibly shift or slide. If the card moves significantly when you tilt the slab, the internal spacers may be missing or wrong-sized - a sign of a re-cased slab.

Step 4: Re-Cased Slabs (Crack-Out Fraud)

One of the most sophisticated frauds involves cracking open a genuine lower-grade slab, replacing the card with a higher-quality version (or in the case of label fraud, modifying the grade label) and re-sealing the slab with a heat gun or solvent adhesive. Signs of a re-cased slab include:

  • Slight residue, adhesive bleed, or discolouration along the seam edge - sometimes visible as a faint yellowish line.
  • The internal foam or card spacer not sitting perfectly flush - small bubbles or wrinkles in the interior padding.
  • The cert number returning a genuine lower-grade submission for that same card on the cert lookup site.
  • A very slight warp or bow to the slab case at the corners where heat was applied during re-sealing.
  • The grade number looking subtly different in font weight or size from the rest of the label text - a sign that only the grade was digitally altered before reprinting.

The cert lookup comparison image is invaluable here - a slab claimed to be PSA 10 that was cracked from a PSA 7 will show different centering or surface characteristics in the reference photo than what is physically in the slab.

Step 5: CGC Comics-Specific Checks

CGC comic slabs have additional verification features:

  • The label colour indicates grade tier: gold (9.8 and above), blue (8.0 through 9.6), purple (Restored), green (signature series), yellow (qualified). Verify that the label colour matches the stated grade.
  • CGC slabs use a two-piece snap-lock case with a distinct click when opened by an authorised tool. Re-glued slabs often resist opening cleanly or produce a creaking sound at the seam.
  • The interior liner paper should be bright white and sitting tight against the comic. Yellowed or wrinkled liner paper strongly suggests the slab was opened and resealed at some point.
  • The comic itself should show grading stamps or markings consistent with CGC's process - though counterfeiting these is a separate effort beyond most fraudsters.

Track your graded comics on CollectionPlnr's comics section and note the cert number with each slab so you can re-verify at any future point, especially if you plan to sell.

Step 6: Buying Graded Cards and Comics Safely

Risk management starts before you inspect a slab. Reduce exposure by buying slabs only from reputable sellers with long sales histories, verified feedback on major platforms, and high-resolution photos of the slab from multiple angles - including the label, both edges, and the top seam. Be especially wary of:

  • New accounts selling high-grade, high-value slabs at below-market prices.
  • Sellers who photograph only the front face and refuse to show the label edge or seam.
  • Listings on informal platforms (Facebook Marketplace, Instagram) without any buyer protection policy.

Auction houses with authentication guarantees (Heritage Auctions, PWCC Marketplace) offer meaningful protection for high-value purchases, and their authentication teams inspect slabs before listing. When buying in person at a show or market, do the cert lookup on your phone before money changes hands.

For more context on what grades actually mean and which companies are most trusted, read our companion guide on PSA vs CGC vs BGS: which grading company is best.

Summary: Graded Slab Authentication Checklist

  • Cert lookup on the grading company's official website returns a matching result
  • Card description, grade, and reference image match the physical slab contents
  • Label font is sharp under magnification with correct colour palette
  • Holographic security feature shifts colour correctly as you tilt
  • Slab seam is clean with no glue residue, adhesive bleed or discolouration
  • Acrylic is optically clear, appropriately heavy, and sounds solid when tapped
  • Card has minimal movement inside the slab
  • No sign of re-sealing, warping or misaligned interior padding
  • CGC label colour matches the stated grade tier
  • Seller has credible history and provides multi-angle photos