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PSA 10: Median of 7 sales, last 45 days · newest Oct 18, 2026 · checked Oct 27, 2026
PSA 9: Median of 23 PSA 9 sales in the last 90 days, latest 2026-10-23. Grade 9 guide (all graders): $519.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Cool Porygon (Promo #15) at $88.78 market price (TCGplayer market). Its Delta multiple is 56.3x.
A PSA 10 Cool Porygon (Promo #15) is currently shown at $5,000, the median of 7 PSA 10 sales in the last 45 days (newest Oct 18, 2026).
GemDelta records a 3.76% gem rate for Cool Porygon (Promo #15), with 169 PSA 10 copies out of 4,493 total PSA grades and a 56.3x Delta. That describes the grading profile; it is not financial advice.
Showing the latest 12 of 13 stored PSA 10 comps.