Is Bob Gibson #S-BG worth grading?
Baseball · Baseball Cards 2018 Panini Diamond Kings Signatures · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Bob Gibson #S-BG sells for $77.00 against $35.08 raw: a $41.92 spread, 2.2× the ungraded price. Even a PSA 9 ($69.99) 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)
- $35.08
- Grade 9.5
- $77.00
- PSA 9
- $69.99
- Gem premium
- 2.2×
- As of
- Sep 4, 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 | $77.00 | +$16.92 | −$8.08 | −$108 |
| PSA 9 | $69.99 | +$9.91 | −$15.09 | −$115 |
| PSA 8 | $60.00 | −$0.08 | −$25.08 | −$125 |
Net = sale price − $35.08 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% | $71.74 | −$13.34 |
| 50% | $73.50 | −$11.58 |
| 75% | $75.25 | −$9.83 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
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Grading Bob Gibson #S-BG — FAQ
Is Bob Gibson #S-BG worth grading?
A Grade 9.5 Bob Gibson #S-BG sells for $77.00 against $35.08 raw: a $41.92 spread, 2.2× the ungraded price. Even a PSA 9 ($69.99) 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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