Is Bill Mazeroski #313 worth grading?
Baseball · Baseball Cards 1967 Venezuela Topps · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Bill Mazeroski #313 sells for $1,287 against $71.93 raw: a $1,215 spread, 18× the ungraded price. Even a PSA 9 ($1,170) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $71.93
- Grade 9.5
- $1,287
- PSA 9
- $1,170
- Gem premium
- 18×
- As of
- Jul 11, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — Grade 9.5 | $1,287 | +$1,190 | +$1,165 | +$1,065 |
| PSA 9 | $1,170 | +$1,073 | +$1,048 | +$948 |
Net = sale price − $71.93 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.
Expected value — how often does it need to gem?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $1,199 | +$1,077 |
| 50% | $1,229 | +$1,107 |
| 75% | $1,258 | +$1,136 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
Full grade ladder
Raw conditions & history →| Grade | Graded |
|---|---|
| 9.5 | $1,287 |
| 9 | $1,170 |
| 7 | $790 |
Run your own numbers
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Grading Bill Mazeroski #313 — FAQ
Is Bill Mazeroski #313 worth grading?
A Grade 9.5 Bill Mazeroski #313 sells for $1,287 against $71.93 raw: a $1,215 spread, 18× the ungraded price. Even a PSA 9 ($1,170) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
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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