![Don Sutton [So 957] #31 (Baseball Cards 1971 Kellogg's) — is it worth grading?](https://i.ebayimg.com/images/g/~uUAAeSwCdRqRGBr/s-l1600.jpg)
Is Don Sutton [So 957] #31 worth grading?
Baseball · Baseball Cards 1971 Kellogg's · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Don Sutton [So 957] #31 sells for $141 against $19.34 raw: a $122 spread, 7.3× the ungraded price. Even a PSA 9 ($128) 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)
- $19.34
- Grade 9.5
- $141
- PSA 9
- $128
- Gem premium
- 7.3×
- 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 | $141 | +$96.66 | +$71.66 | −$28.34 |
| PSA 9 | $128 | +$83.92 | +$58.92 | −$41.08 |
| PSA 8 | $49.99 | +$5.65 | −$19.35 | −$119 |
Net = sale price − $19.34 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% | $131 | +$62.10 |
| 50% | $135 | +$65.29 |
| 75% | $138 | +$68.47 |
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 | $141 |
| 9 | $128 |
| 8 | $49.99 |
| 7 | $36.16 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1971 Kellogg's cards worth checking
Full set checklist →
![Jim Palmer [So 564] #60 1971 Kellogg's card](https://i.ebayimg.com/images/g/uKwAAOSw3pdmwpoM/s-l500.jpg)
Grading Don Sutton [So 957] #31 — FAQ
Is Don Sutton [So 957] #31 worth grading?
A Grade 9.5 Don Sutton [So 957] #31 sells for $141 against $19.34 raw: a $122 spread, 7.3× the ungraded price. Even a PSA 9 ($128) 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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