Mark McGwire #12 Price Guide
Baseball · Baseball Cards 1990 Post Cereal · Released 1990
Mark McGwire #12 (Baseball Cards 1990 Post Cereal) is currently worth $1.59 raw (near mint) and $107 in PSA 10 (as of Jul 11, 2026). Values come from the PriceCharting price guide and are refreshed weekly. Grading is the single biggest value lever — check the raw-to-PSA-10 gap below, then scan your copy to see if its centering makes the grade.
Current prices
Raw (ungraded)
| Ungraded | $1.59 |
Graded — grade ladder
| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $107 | $64.00 | $139 | $64.00 | — |
| 9.5 | — | — | — | — | $37.88 |
| 9 | — | — | — | — | $16.00 |
| 8 | — | — | — | — | $14.99 |
| 7 | — | — | — | — | $3.75 |
Last updated 2026-07-11 · Source: the PriceCharting price guide
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Is it worth grading?
Strong grading candidate — 67× premium in PSA 10
A PSA 10 Mark McGwire #12 sells for $107 against $1.59 raw: a $105 spread, 67× the ungraded price. A PSA 9 ($16.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Full grading break-even for Mark McGwire #12: fee tiers, best grader, gem-rate math →
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Mark McGwire #12 — frequently asked
How much is Mark McGwire #12 (Baseball Cards 1990 Post Cereal) worth?
As of Jul 11, 2026, Mark McGwire #12 (Baseball Cards 1990 Post Cereal): an ungraded near-mint copy sells for about $1.59, a PSA 10 sells for about $107, a PSA 9 for about $16.00. Values come from the PriceCharting price guide and are refreshed weekly.
How much is a PSA 10 Mark McGwire #12 worth?
As of Jul 11, 2026, a PSA 10 (Gem Mint) Mark McGwire #12 (Baseball Cards 1990 Post Cereal) sells for about $107, compared with $1.59 for a raw near-mint copy.
Is Mark McGwire #12 worth grading?
A PSA 10 Mark McGwire #12 sells for $107 against $1.59 raw: a $105 spread, 67× the ungraded price. A PSA 9 ($16.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Where do these Baseball card prices come from?
Prices are the PriceCharting price guide, refreshed weekly. Raw values reflect near-mint (NM) ungraded copies; graded values are per grading company and grade.
Is your baseball card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
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