Is Mark McGwire #37 worth grading?
Baseball · Baseball Cards 1997 Topps Gallery · full price guide →
Strong grading candidate — 37× premium in PSA 10
A PSA 10 Mark McGwire #37 sells for $94.69 against $2.55 raw: a $92.14 spread, 37× the ungraded price. A PSA 9 ($12.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $2.55
- PSA 10
- $94.69
- PSA 9
- $12.00
- Gem premium
- 37×
- As of
- Jul 11, 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 | $94.69 | +$67.14 | +$42.14 | −$57.86 |
| PSA 9 | $12.00 | −$15.55 | −$40.55 | −$141 |
| PSA 8 | $10.50 | −$17.05 | −$42.05 | −$142 |
Net = sale price − $2.55 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% | $32.67 | −$19.88 |
| 50% | $53.34 | +$0.80 |
| 75% | $74.02 | +$21.47 |
Break-even gem rate at the standard fee: about 49%. 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 | $123 | best | 55/45 | 70/30 |
| PSA 10 | $94.69 | −$28.31 | 55/45 | 75/25 |
| CGC 10 | $57.00 | −$66.00 | 55/45 | 75/25 |
| SGC 10 | $57.00 | −$66.00 | 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.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $94.69 | $57.00 | $123 | $57.00 | — |
| 9.5 | — | — | — | — | $37.77 |
| 9 | — | — | — | — | $12.00 |
| 8 | — | — | — | — | $10.50 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1997 Topps Gallery cards worth checking
Full set checklist →
![Mariano Rivera [Player's Private Issue] #158 1997 Topps Gallery card](https://i.ebayimg.com/images/g/blgAAOSwVeFix8cv/s-l500.jpg)
![Ken Griffey Jr. [Player's Private Issue] #79 1997 Topps Gallery card](https://i.ebayimg.com/images/g/XukAAOSwoTRi6X5B/s-l500.jpg)
![Derek Jeter [Player's Private Issue] #161 1997 Topps Gallery card](https://i.ebayimg.com/images/g/Q0cAAeSwrFJqZn9I/s-l500.jpg)
![Rickey Henderson [Player's Private Issue] #11 1997 Topps Gallery card](https://i.ebayimg.com/images/g/FU0AAOSwcr1oVa6c/s-l500.jpg)
Grading Mark McGwire #37 — FAQ
Is Mark McGwire #37 worth grading?
A PSA 10 Mark McGwire #37 sells for $94.69 against $2.55 raw: a $92.14 spread, 37× the ungraded price. A PSA 9 ($12.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Mark McGwire #37 worth compared with raw?
A PSA 10 Mark McGwire #37 (Baseball Cards 1997 Topps Gallery) sells for about $94.69 versus $2.55 for a raw near-mint copy — a 37× premium as of Jul 11, 2026.
Which grading company is best for Mark McGwire #37?
By resale value, BGS 10 leads at $123, ahead of PSA 10 at $94.69. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mark McGwire #37 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 Mark McGwire #37 break even?
At a standard ~$50 fee, submitting Mark McGwire #37 breaks even when it gems about 49% of the time (a miss assumed to sell at the PSA 9 price of $12.00).
Is your baseball card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
Check my card free