Mariners 1979 Prospects Grade Comparison — PSA 10 vs PSA 9 vs Raw (September 2026)

Compare Mariners 1979 Prospects values across different grades. See whether grading is worth it based on current prices and PSA gem rates.

Price by Grade

GradeGuardian EstimatePremium vs Raw
Raw / Ungraded$1.50—
PSA 10 Gem Mint$150.00+9900%

Frequently Asked Questions

Is Mariners 1979 Prospects worth grading? A PSA 10 Mariners 1979 Prospects is worth $150.00 vs $1.50 raw — a 9900% premium.

What is Mariners 1979 Prospects PSA 10 worth? $150.00 as of September 2026.