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PSA 10: Median of 5 sales, last 45 days · newest Oct 16, 2026 · checked Oct 25, 2026
PSA 9: Median of 5 PSA 9 sales in the last 90 days, latest 2026-09-16. Grade 9 guide (all graders): $26.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Thundurus (Promo #209) at $17.60 market price (TCGplayer market). Its Delta multiple is 10.8x.
A PSA 10 Thundurus (Promo #209) is currently shown at $190, the median of 5 PSA 10 sales in the last 45 days (newest Oct 16, 2026).
GemDelta records a 39.3% gem rate for Thundurus (Promo #209), with 1,437 PSA 10 copies out of 3,659 total PSA grades and a 10.8x Delta. That describes the grading profile; it is not financial advice.
Showing the latest 12 of 27 stored PSA 10 comps.