Compare Mark McGwire values across different grades. See whether grading is worth it based on current prices and PSA gem rates.
Price by Grade
| Grade | Guardian Estimate | Premium vs Raw |
|---|
| Raw / Ungraded | $11.74 | — |
| PSA 8 | $34.00 | +190% |
| PSA 9 | $212.92 | +1714% |
| PSA 10 Gem Mint | $5036.01 | +42796% |
Frequently Asked Questions
Is Mark McGwire worth grading? A PSA 10 Mark McGwire is worth $5036.01 vs $11.74 raw — a 42796% premium.
What is Mark McGwire PSA 10 worth? $5036.01 as of September 2026.