Is Peter Alonso [Sky Blue] #15 worth grading?
Baseball · Baseball Cards 2018 Bowman Platinum Top Prospects · full price guide →
Grading rarely pays for this card
Grade 9.5 copies of Peter Alonso [Sky Blue] #15 sell for $6.00, only $2.26 above the $3.74 raw price — less than an economy-tier grading fee. A PSA 9 ($5.40) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.
- Raw (NM)
- $3.74
- Grade 9.5
- $6.00
- PSA 9
- $5.40
- Gem premium
- 1.6×
- As of
- Sep 3, 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 | $6.00 | −$22.74 | −$47.74 | −$148 |
| PSA 9 | $5.40 | −$23.34 | −$48.34 | −$148 |
Net = sale price − $3.74 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% | $5.55 | −$48.19 |
| 50% | $5.70 | −$48.04 |
| 75% | $5.85 | −$47.89 |
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 Peter Alonso [Sky Blue] #15 — FAQ
Is Peter Alonso [Sky Blue] #15 worth grading?
Grade 9.5 copies of Peter Alonso [Sky Blue] #15 sell for $6.00, only $2.26 above the $3.74 raw price — less than an economy-tier grading fee. A PSA 9 ($5.40) only about breaks even after fees, so the case rests on gemming. Keep it raw unless you are grading for the slab itself.
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