Is Ken Griffey Jr. #31 worth grading?
Baseball · Baseball Cards 2000 Upper Deck Ovation · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Ken Griffey Jr. #31 sells for $106 against $4.00 raw: a $102 spread, 26× the ungraded price. Even a PSA 9 ($34.02) 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)
- $4.00
- PSA 10
- $106
- PSA 9
- $34.02
- Gem premium
- 26×
- 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 | $106 | +$76.96 | +$51.96 | −$48.04 |
| PSA 9 | $34.02 | +$5.02 | −$19.98 | −$120 |
| PSA 8 | $19.62 | −$9.38 | −$34.38 | −$134 |
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% | $52.00 | −$2.00 |
| 50% | $69.99 | +$15.99 |
| 75% | $87.97 | +$33.97 |
Break-even gem rate at the standard fee: about 28%. Centering is the usual reason a clean copy misses — measure it before you decide.
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 | $138 | best | 55/45 | 70/30 |
| PSA 10 | $106 | −$32.04 | 55/45 | 75/25 |
| CGC 10 | $64.00 | −$74.00 | 55/45 | 75/25 |
| SGC 10 | $64.00 | −$74.00 | 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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Full set checklist →Grading Ken Griffey Jr. #31 — FAQ
Is Ken Griffey Jr. #31 worth grading?
A PSA 10 Ken Griffey Jr. #31 sells for $106 against $4.00 raw: a $102 spread, 26× the ungraded price. Even a PSA 9 ($34.02) 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.
How much is a PSA 10 Ken Griffey Jr. #31 worth compared with raw?
A PSA 10 Ken Griffey Jr. #31 (Baseball Cards 2000 Upper Deck Ovation) sells for about $106 versus $4.00 for a raw near-mint copy — a 26× premium as of Sep 4, 2026.
Which grading company is best for Ken Griffey Jr. #31?
By resale value, BGS 10 leads at $138, ahead of PSA 10 at $106. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Ken Griffey Jr. #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.
What gem rate makes grading Ken Griffey Jr. #31 break even?
At a standard ~$50 fee, submitting Ken Griffey Jr. #31 breaks even when it gems about 28% of the time (a miss assumed to sell at the PSA 9 price of $34.02).
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