Is Bo Diaz #639 worth grading?
Baseball · Baseball Cards 1986 Topps · full price guide →
Worth grading — even a PSA 9 beats raw
A Grade 9.5 Bo Diaz #639 sells for $66.00 against $1.29 raw: a $64.71 spread, 51× the ungraded price. Even a PSA 9 ($59.99) 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)
- $1.29
- Grade 9.5
- $66.00
- PSA 9
- $59.99
- Gem premium
- 51×
- As of
- Sep 7, 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 | $66.00 | +$39.71 | +$14.71 | −$85.29 |
| PSA 9 | $59.99 | +$33.70 | +$8.70 | −$91.30 |
| PSA 8 | $10.06 | −$16.23 | −$41.23 | −$141 |
Net = sale price − $1.29 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% | $61.49 | +$10.20 |
| 50% | $63.00 | +$11.71 |
| 75% | $64.50 | +$13.21 |
Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.
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Grading Bo Diaz #639 — FAQ
Is Bo Diaz #639 worth grading?
A Grade 9.5 Bo Diaz #639 sells for $66.00 against $1.29 raw: a $64.71 spread, 51× the ungraded price. Even a PSA 9 ($59.99) 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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