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How Dealers Use Pre-Grading Before PSA Submissions

A practical framework for deciding which raw cards are worth official grading fees — and which should stay in the raw bin.

Philip Greenberg — Founder & CEO, Mint ConditionJune 15, 20263 min read

If you buy inventory at scale, the expensive mistake is not missing a gem — it is sending the wrong cards to PSA.

Official grading fees, shipping, and turnaround time add up fast. Pre-grading is how dealers filter submissions before money leaves the table.

The dealer math is simple

Every raw card has three numbers:

  1. Likely official grade (your best estimate)
  2. Graded resale value at that grade
  3. All-in submission cost (grading + shipping + your time)

If margin number two minus number three is not worth the risk, the card should not go out the door.

Rule of thumb: If you would not list the card at a profit at the estimated grade, do not submit it hoping for a miracle.

What to look at before you submit

Centering

Centering is the fastest filter. Cards that look "fine" to the eye often fail dealer standards on front-to-back ratio — especially vintage stock.

Use measured centering overlays, not guesswork. A card that grades a 7 on centering alone is rarely worth a premium slab chase.

Surface and corners

Surface scratches, print lines, and soft corners are where AI pre-grading pays for itself on bulk buys. Human review at 200 cards per hour is inconsistent. A consistent pass catches defects you would miss on card 147.

Population and comps

Pre-grade estimates should sit next to your comp data. A PSA 9 on a common modern base card is not the same business decision as a PSA 9 on a short-print rookie.

A workflow that scales

Here is the intake flow we see work at high-volume shops:

  1. Batch scan walk-in boxes and show purchases (up to 20 cards at a time).
  2. Flag anything below your shop's minimum submit grade.
  3. Vault the keepers with notes and estimated value.
  4. Bulk export submission candidates for your listing or PSA prep team.

Dealers running CSV-based buys can run the same logic on thousands of rows — the decision framework does not change, only the volume.

Pre-grading is not official grading

This is important for your customers and your team: AI pre-grading is an estimate, not a PSA, BGS, or SGC grade.

Use it to prioritize submissions and reduce waste — not to guarantee outcomes. The goal is fewer bad submits, not perfect prediction every time.

Try it on your next intake

If you have not structured pre-grading into intake yet, start small:

  • Pick one purchase from this week.
  • Scan front and back for every card you would normally consider submitting.
  • Compare pre-grade results to what you would have sent blindly.

Most dealers find 15–30% of their "submit pile" should never have left the shop.

Ready to test the workflow? Try the sandbox with sample cards, or sign in to run your first batch.