Compare Bert Blyleven 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 | $0.58 | — |
| PSA 10 Gem Mint | $17.73 | +2957% |
Frequently Asked Questions
Is Bert Blyleven worth grading? A PSA 10 Bert Blyleven is worth $17.73 vs $0.58 raw — a 2957% premium.
What is Bert Blyleven PSA 10 worth? $17.73 as of September 2026.