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Roberto Clemente (Baseball Cards 1977 Sertoma Stars) — is it worth grading?

Is Roberto Clemente worth grading?

Baseball · Baseball Cards 1977 Sertoma Stars · full price guide →

Worth grading — even a PSA 9 beats raw

A Grade 9.5 Roberto Clemente sells for $147 against $19.76 raw: a $127 spread, 7.4× the ungraded price. Even a PSA 9 ($134) 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)
$19.76
Grade 9.5
$147
PSA 9
$134
Gem premium
7.4×
As of
Sep 4, 2026

Break-even by outcome and fee

Roberto Clemente: 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$147+$102+$77.24−$22.76
PSA 9$134+$89.24+$64.24−$35.76
PSA 8$122+$77.14+$52.14−$47.86

Net = sale price − $19.76 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?

Roberto Clemente: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$137+$67.49
50%$141+$70.74
75%$144+$73.99

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

Roberto Clemente graded prices by company and grade
GradeGraded
9.5$147
9$134
8$122
7$87.50

Run your own numbers

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Other 1977 Sertoma Stars cards worth checking

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Grading Roberto Clemente — FAQ

Is Roberto Clemente worth grading?

A Grade 9.5 Roberto Clemente sells for $147 against $19.76 raw: a $127 spread, 7.4× the ungraded price. Even a PSA 9 ($134) 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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