Card Grading ROI Calculator

When grading actually pays off

Grading only makes sense when the jump from raw to graded value more than covers the fee, the round-trip shipping, and the risk that your card comes back a 9 (or lower) instead of a 10. The bigger the spread between the raw price and the PSA 10 price — and the cleaner the card — the more grading tips into profit.

Two things drive the math right now. First, the cheapest practical PSA submission has been sitting around $80/card, which makes low-dollar grading hard to justify — check PSA's current tier list before you budget, because fees move. Second, the spread between a 9 and a 10 stayed wide on premium rookies, so the "is it a true 10?" question matters more than ever. That's exactly what this calculator pins down: it weights the PSA 10 upside against the very real chance of a 9.

How to use it well

• Get honest values. Don't eyeball it — hit "Check real sold comps on eBay" to see what raw, 9, and 10 copies of your exact card actually sold for recently.
• Be honest about the grade odds. Centering, corners, edges, surface. A card with any visible flaw is long odds for a 10 — and the calculator punishes optimism, because a 9 often barely beats raw.
• Include shipping both ways. It's easy to forget the return shipping and insurance; on a cheap card it can be the whole margin.

Grading costs at a glance

Economy/bulk tiers, before shipping. Treat these as starting points and confirm current pricing on each grader's own site, since fees move:

• PSA — economy around $80/card.
• SGC — economy around $25–$30/card.
• CGC — economy around $18–$25/card.

SGC and CGC turn the budget end of grading into a much easier yes; PSA still tends to carry the biggest 10-grade premium on resale, which is why the spread — not just the fee — decides it. For the full grader-by-grader breakdown, turnaround, and what a submission really costs all-in, see should you grade your Victor Wembanyama cards? PSA vs BGS vs SGC.

Which Wemby cards clear the bar

The 3–4× raw-to-10 spread this calculator needs shows up in specific places on Wemby's 2023-24 run. Numbered chrome — the Prizm parallels, the Select tiers, the Mosaic rainbow — carries the widest 9-to-10 gap, which is exactly where an honest centering read pays for itself. Certified autographs and Topps Mercury rookie patch autos (his only certified-auto lane — no Panini Wemby auto exists) are usually already slabbed when they trade, so the question there is buying graded, not grading. Base paper rookies rarely clear the fee at all.

Not sure which card you have? The rookie card checklist and the autograph checklist enumerate every lane, and what is a Wemby card worth? covers how to pull honest raw and graded comps to feed into the boxes above. Check centering first with the centering tool — bad centering caps the grade no matter what the spread says.