Compare Jim Kaat 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 | $1.55 | — |
| PSA 8 | $6.60 | +326% |
| PSA 9 | $26.00 | +1577% |
| PSA 10 Gem Mint | $89.54 | +5677% |
Frequently Asked Questions
Is Jim Kaat worth grading? A PSA 10 Jim Kaat is worth $89.54 vs $1.55 raw — a 5677% premium.
What is Jim Kaat PSA 10 worth? $89.54 as of September 2026.