Compare Ken Griffey Jr. [Error] 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 | $3.99 | — |
| PSA 8 | $17.92 | +349% |
| PSA 9 | $39.53 | +891% |
| PSA 10 Gem Mint | $210.03 | +5164% |
Frequently Asked Questions
Is Ken Griffey Jr. [Error] worth grading? A PSA 10 Ken Griffey Jr. [Error] is worth $210.03 vs $3.99 raw — a 5164% premium.
What is Ken Griffey Jr. [Error] PSA 10 worth? $210.03 as of September 2026.