Is Mark McGwire #70 worth grading?
Baseball · Baseball Cards 1989 Topps Tiffany · full price guide →
Worth grading — even a PSA 9 beats raw
A PSA 10 Mark McGwire #70 sells for $152 against $6.73 raw: a $145 spread, 23× the ungraded price. Even a PSA 9 ($39.22) 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)
- $6.73
- PSA 10
- $152
- PSA 9
- $39.22
- Gem premium
- 23×
- 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 | $152 | +$120 | +$95.06 | −$4.94 |
| PSA 9 | $39.22 | +$7.49 | −$17.51 | −$118 |
| PSA 8 | $14.41 | −$17.32 | −$42.32 | −$142 |
Net = sale price − $6.73 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% | $67.36 | +$10.63 |
| 50% | $95.50 | +$38.77 |
| 75% | $124 | +$66.92 |
Break-even gem rate at the standard fee: about 16%. 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 | $197 | best | 55/45 | 70/30 |
| PSA 10 | $152 | −$45.21 | 55/45 | 75/25 |
| CGC 10 | $91.00 | −$106 | 55/45 | 75/25 |
| SGC 10 | $91.00 | −$106 | 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 | $152 | $91.00 | $197 | $91.00 | — |
| 9.5 | — | — | — | — | $90.97 |
| 9 | — | — | — | — | $39.22 |
| 8 | — | — | — | — | $14.41 |
| 7 | — | — | — | — | $4.74 |
Run your own numbers
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
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Grading Mark McGwire #70 — FAQ
Is Mark McGwire #70 worth grading?
A PSA 10 Mark McGwire #70 sells for $152 against $6.73 raw: a $145 spread, 23× the ungraded price. Even a PSA 9 ($39.22) 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 Mark McGwire #70 worth compared with raw?
A PSA 10 Mark McGwire #70 (Baseball Cards 1989 Topps Tiffany) sells for about $152 versus $6.73 for a raw near-mint copy — a 23× premium as of Jul 11, 2026.
Which grading company is best for Mark McGwire #70?
By resale value, BGS 10 leads at $197, ahead of PSA 10 at $152. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mark McGwire #70 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 #70 break even?
At a standard ~$50 fee, submitting Mark McGwire #70 breaks even when it gems about 16% of the time (a miss assumed to sell at the PSA 9 price of $39.22).
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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