Is Roy Halladay #31 worth grading?
Baseball · Baseball Cards 2004 Upper Deck Diamond Collection Pro Sigs · full price guide →
Worth grading only if it gems
A PSA 10 Roy Halladay #31 brings $29.99 versus $0.99 raw — a $29.00 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($12.48) only about breaks even after fees, so the case rests on gemming.
- Raw (NM)
- $0.99
- PSA 10
- $29.99
- PSA 9
- $12.48
- Gem premium
- 30×
- 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 — PSA 10 | $29.99 | +$4.00 | −$21.00 | −$121 |
| PSA 9 | $12.48 | −$13.51 | −$38.51 | −$139 |
| PSA 8 | $6.41 | −$19.58 | −$44.58 | −$145 |
Net = sale price − $0.99 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% | $16.86 | −$34.13 |
| 50% | $21.23 | −$29.75 |
| 75% | $25.61 | −$25.38 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
Which grader pays the most — and what a 10 takes
All centering standards →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $39.00 | best | 55/45 | 70/30 |
| PSA 10 | $29.99 | −$9.01 | 55/45 | 75/25 |
| CGC 10 | $18.00 | −$21.00 | 55/45 | 75/25 |
| SGC 10 | $18.00 | −$21.00 | 55/45 | 75/25 |
Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.
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Other 2004 Upper Deck Diamond Collection Pro Sigs cards worth checking
Full set checklist →Grading Roy Halladay #31 — FAQ
Is Roy Halladay #31 worth grading?
A PSA 10 Roy Halladay #31 brings $29.99 versus $0.99 raw — a $29.00 spread that covers an economy-tier ~$25 grading fee. A PSA 9 ($12.48) only about breaks even after fees, so the case rests on gemming.
How much is a PSA 10 Roy Halladay #31 worth compared with raw?
A PSA 10 Roy Halladay #31 (Baseball Cards 2004 Upper Deck Diamond Collection Pro Sigs) sells for about $29.99 versus $0.99 for a raw near-mint copy — a 30× premium as of Sep 4, 2026.
Which grading company is best for Roy Halladay #31?
By resale value, BGS 10 leads at $39.00, ahead of PSA 10 at $29.99. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Roy Halladay #31 need for a BGS 10?
BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.
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