Is Don Mattingly #SCA-DM worth grading?
Baseball · Baseball Cards 2018 Stadium Club Autographs · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Don Mattingly #SCA-DM sells for $165 against $103 raw: a $62.02 spread, 1.6× the ungraded price. Even a PSA 9 ($150) 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)
- $103
- Grade 9.5
- $165
- PSA 9
- $150
- Gem premium
- 1.6×
- 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 | $165 | +$37.02 | +$12.02 | −$87.98 |
| PSA 9 | $150 | +$22.02 | −$2.98 | −$103 |
Net = sale price − $103 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% | $154 | +$0.77 |
| 50% | $158 | +$4.52 |
| 75% | $161 | +$8.27 |
Break-even gem rate at the standard fee: about 20%. Centering is the usual reason a clean copy misses — measure it before you decide.
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Grading Don Mattingly #SCA-DM — FAQ
Is Don Mattingly #SCA-DM worth grading?
A Grade 9.5 Don Mattingly #SCA-DM sells for $165 against $103 raw: a $62.02 spread, 1.6× the ungraded price. Even a PSA 9 ($150) 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.
What gem rate makes grading Don Mattingly #SCA-DM break even?
At a standard ~$50 fee, submitting Don Mattingly #SCA-DM breaks even when it gems about 20% of the time (a miss assumed to sell at the PSA 9 price of $150).
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