![Mike Piazza [Refractor] #M28 (Baseball Cards 1999 Topps All Mystery Finest) — is it worth grading?](https://i.ebayimg.com/images/g/9coAAeSwU7hqaKFo/s-l1600.jpg)
Is Mike Piazza [Refractor] #M28 worth grading?
Baseball · Baseball Cards 1999 Topps All Mystery Finest · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Mike Piazza [Refractor] #M28 sells for $79.96 against $7.45 raw: a $72.51 spread, 11× the ungraded price. Even a PSA 9 ($37.55) 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)
- $7.45
- PSA 10
- $79.96
- PSA 9
- $37.55
- Gem premium
- 11×
- 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 | $79.96 | +$47.51 | +$22.51 | −$77.49 |
| PSA 9 | $37.55 | +$5.10 | −$19.90 | −$120 |
| PSA 8 | $18.98 | −$13.47 | −$38.47 | −$138 |
Net = sale price − $7.45 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% | $48.15 | −$9.30 |
| 50% | $58.75 | +$1.30 |
| 75% | $69.36 | +$11.91 |
Break-even gem rate at the standard fee: about 47%. 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 | $104 | best | 55/45 | 70/30 |
| PSA 10 | $79.96 | −$24.04 | 55/45 | 75/25 |
| CGC 10 | $48.00 | −$56.00 | 55/45 | 75/25 |
| SGC 10 | $48.00 | −$56.00 | 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 | $79.96 | $48.00 | $104 | $48.00 | — |
| 9.5 | — | — | — | — | $62.59 |
| 9 | — | — | — | — | $37.55 |
| 8 | — | — | — | — | $18.98 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
Other 1999 Topps All Mystery Finest cards worth checking
Full set checklist →![Juan Gonzalez [Refractor] #M15 1999 Topps All Mystery Finest card](https://i.ebayimg.com/images/g/QTkAAOSw4oxn4tYR/s-l500.jpg)
![David Justice [Refractor] #M21 1999 Topps All Mystery Finest card](https://i.ebayimg.com/images/g/NiEAAeSwps5qIeI5/s-l500.jpg)
![Greg Maddux [Refractor] #M33 1999 Topps All Mystery Finest card](https://i.ebayimg.com/images/g/pYYAAeSwcGJqKD8l/s-l500.jpg)
![Frank Thomas [Refractor] #M19 1999 Topps All Mystery Finest card](https://i.ebayimg.com/images/g/TcIAAeSwuzZqXuY-/s-l500.jpg)
![Barry Bonds [Refractor] #M16 1999 Topps All Mystery Finest card](https://i.ebayimg.com/images/g/wkQAAeSw7CdpH5Jc/s-l500.jpg)
Grading Mike Piazza [Refractor] #M28 — FAQ
Is Mike Piazza [Refractor] #M28 worth grading?
A PSA 10 Mike Piazza [Refractor] #M28 sells for $79.96 against $7.45 raw: a $72.51 spread, 11× the ungraded price. Even a PSA 9 ($37.55) 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 Mike Piazza [Refractor] #M28 worth compared with raw?
A PSA 10 Mike Piazza [Refractor] #M28 (Baseball Cards 1999 Topps All Mystery Finest) sells for about $79.96 versus $7.45 for a raw near-mint copy — a 11× premium as of Jul 11, 2026.
Which grading company is best for Mike Piazza [Refractor] #M28?
By resale value, BGS 10 leads at $104, ahead of PSA 10 at $79.96. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mike Piazza [Refractor] #M28 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 Piazza [Refractor] #M28 break even?
At a standard ~$50 fee, submitting Mike Piazza [Refractor] #M28 breaks even when it gems about 47% of the time (a miss assumed to sell at the PSA 9 price of $37.55).
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.
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