Is Corey Koskie #CK worth grading?
Baseball · Baseball Cards 1999 SP Authentic Chirography · full price guide →
Grading rarely pays for this card
Grade 9.5 copies of Corey Koskie #CK sell for $12.00, only $8.00 above the $4.00 raw price — less than an economy-tier grading fee. A PSA 9 ($10.50) 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)
- $4.00
- Grade 9.5
- $12.00
- PSA 9
- $10.50
- Gem premium
- 3.0×
- 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 | $12.00 | −$17.00 | −$42.00 | −$142 |
| PSA 9 | $10.50 | −$18.50 | −$43.50 | −$144 |
Net = sale price − $4.00 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% | $10.88 | −$43.13 |
| 50% | $11.25 | −$42.75 |
| 75% | $11.63 | −$42.38 |
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 Corey Koskie #CK — FAQ
Is Corey Koskie #CK worth grading?
Grade 9.5 copies of Corey Koskie #CK sell for $12.00, only $8.00 above the $4.00 raw price — less than an economy-tier grading fee. A PSA 9 ($10.50) 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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