![Mike Schmidt [Diamond Kings Steel] #23 (Baseball Cards 1984 Donruss) — is it worth grading?](https://i.ebayimg.com/images/g/gMoAAeSwS89qHnOc/s-l1600.jpg)
Is Mike Schmidt [Diamond Kings Steel] #23 worth grading?
Baseball · Baseball Cards 1984 Donruss · full price guide →
Strong grading candidate — 105× premium in PSA 10
A PSA 10 Mike Schmidt [Diamond Kings Steel] #23 sells for $300 against $2.85 raw: a $297 spread, 105× the ungraded price. A PSA 9 ($27.12) 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)
- $2.85
- PSA 10
- $300
- PSA 9
- $27.12
- Gem premium
- 105×
- 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 | $300 | +$272 | +$247 | +$147 |
| PSA 9 | $27.12 | −$0.73 | −$25.73 | −$126 |
| PSA 8 | $12.50 | −$15.35 | −$40.35 | −$140 |
Net = sale price − $2.85 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% | $95.34 | +$42.49 |
| 50% | $164 | +$111 |
| 75% | $232 | +$179 |
Break-even gem rate at the standard fee: about 9%. 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 | $390 | best | 55/45 | 70/30 |
| PSA 10 | $300 | −$90.01 | 55/45 | 75/25 |
| CGC 10 | $180 | −$210 | 55/45 | 75/25 |
| SGC 10 | $180 | −$210 | 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 | $300 | $180 | $390 | $180 | — |
| 9.5 | — | — | — | — | $70.43 |
| 9 | — | — | — | — | $27.12 |
| 8 | — | — | — | — | $12.50 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1984 Donruss cards worth checking
Full set checklist →
Grading Mike Schmidt [Diamond Kings Steel] #23 — FAQ
Is Mike Schmidt [Diamond Kings Steel] #23 worth grading?
A PSA 10 Mike Schmidt [Diamond Kings Steel] #23 sells for $300 against $2.85 raw: a $297 spread, 105× the ungraded price. A PSA 9 ($27.12) 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 Mike Schmidt [Diamond Kings Steel] #23 worth compared with raw?
A PSA 10 Mike Schmidt [Diamond Kings Steel] #23 (Baseball Cards 1984 Donruss) sells for about $300 versus $2.85 for a raw near-mint copy — a 105× premium as of Jul 11, 2026.
Which grading company is best for Mike Schmidt [Diamond Kings Steel] #23?
By resale value, BGS 10 leads at $390, ahead of PSA 10 at $300. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mike Schmidt [Diamond Kings Steel] #23 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 Mike Schmidt [Diamond Kings Steel] #23 break even?
At a standard ~$50 fee, submitting Mike Schmidt [Diamond Kings Steel] #23 breaks even when it gems about 9% of the time (a miss assumed to sell at the PSA 9 price of $27.12).
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