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PSA 10: PriceCharting · last PSA 10 sale $274.50 on Aug 10, 2026 · checked Oct 25, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Prof. Oak's Research (Fire Red & Leaf Green #98) at $5.43 market price (TCGplayer market). Its Delta multiple is 48.0x.
A PSA 10 Prof. Oak's Research (Fire Red & Leaf Green #98) is currently shown at $260. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 27.0% gem rate for Prof. Oak's Research (Fire Red & Leaf Green #98), with 20 PSA 10 copies out of 74 total PSA grades and a 48.0x Delta. That describes the grading profile; it is not financial advice.
The Reverse Holo version of Prof. Oak's Research (Fire Red & Leaf Green #98) is shown at $5.43 market price. That value is for this stored card variant, not the base printing.
| Date | Listing | Sale |
|---|---|---|
| Aug 10, 2026 | 2004 Pokemon EX Fire Red & Leaf Green Reverse Foil #98 Prof. Oak's Research - PSA GEM MT 10 [Goldin] | $274.50 |