Is Mark McGwire #690 worth grading?
Baseball · Baseball Cards 1990 Topps Tiffany · full price guide →
Strong grading candidate — 46× premium in PSA 10
A PSA 10 Mark McGwire #690 sells for $345 against $7.54 raw: a $337 spread, 46× the ungraded price. A PSA 9 ($26.96) 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)
- $7.54
- PSA 10
- $345
- PSA 9
- $26.96
- Gem premium
- 46×
- 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 | $345 | +$312 | +$287 | +$187 |
| PSA 9 | $26.96 | −$5.58 | −$30.58 | −$131 |
| PSA 8 | $25.48 | −$7.06 | −$32.06 | −$132 |
Net = sale price − $7.54 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% | $106 | +$48.80 |
| 50% | $186 | +$128 |
| 75% | $265 | +$208 |
Break-even gem rate at the standard fee: about 10%. 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 | $448 | best | 55/45 | 70/30 |
| PSA 10 | $345 | −$104 | 55/45 | 75/25 |
| CGC 10 | $207 | −$241 | 55/45 | 75/25 |
| SGC 10 | $207 | −$241 | 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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Grading Mark McGwire #690 — FAQ
Is Mark McGwire #690 worth grading?
A PSA 10 Mark McGwire #690 sells for $345 against $7.54 raw: a $337 spread, 46× the ungraded price. A PSA 9 ($26.96) 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 #690 worth compared with raw?
A PSA 10 Mark McGwire #690 (Baseball Cards 1990 Topps Tiffany) sells for about $345 versus $7.54 for a raw near-mint copy — a 46× premium as of Sep 4, 2026.
Which grading company is best for Mark McGwire #690?
By resale value, BGS 10 leads at $448, ahead of PSA 10 at $345. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Mark McGwire #690 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 #690 break even?
At a standard ~$50 fee, submitting Mark McGwire #690 breaks even when it gems about 10% of the time (a miss assumed to sell at the PSA 9 price of $26.96).
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