Compare John Denny 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 | $0.93 | — |
| PSA 8 | $7.15 | +669% |
| PSA 9 | $7.51 | +708% |
| PSA 10 Gem Mint | $89.00 | +9470% |
Frequently Asked Questions
Is John Denny worth grading? A PSA 10 John Denny is worth $89.00 vs $0.93 raw — a 9470% premium.
What is John Denny PSA 10 worth? $89.00 as of September 2026.