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Don Sutton [So 957] #31 (Baseball Cards 1971 Kellogg's) — is it worth grading?

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 $139 against $19.43 raw: a $120 spread, 7.2× the ungraded price. Even a PSA 9 ($126) 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)
$19.43
Grade 9.5
$139
PSA 9
$126
Gem premium
7.2×
As of
Sep 4, 2026

Break-even by outcome and fee

Don Sutton [So 957] #31: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — Grade 9.5$139+$94.57+$69.57−$30.43
PSA 9$126+$81.81+$56.81−$43.19
PSA 8$49.99+$5.56−$19.44−$119

Net = sale price − $19.43 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?

Don Sutton [So 957] #31: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$129+$60.00
50%$133+$63.19
75%$136+$66.38

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Don Sutton [So 957] #31 graded prices by company and grade
GradeGraded
9.5$139
9$126
8$49.99
7$36.90

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

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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 $139 against $19.43 raw: a $120 spread, 7.2× the ungraded price. Even a PSA 9 ($126) 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.

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