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PSA 10: Median of 2 sales, last 45 days · newest Oct 12, 2026 · checked Oct 26, 2026
PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-09-23. Grade 9 guide (all graders): $48.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Underground Expedition (Celestial Storm #168) at $38.79 market price (TCGplayer market). Its Delta multiple is 4.28x.
A PSA 10 Underground Expedition (Celestial Storm #168) is currently shown at $166, the median of 2 PSA 10 sales in the last 45 days (newest Oct 12, 2026).
GemDelta records a 60.4% gem rate for Underground Expedition (Celestial Storm #168), with 265 PSA 10 copies out of 439 total PSA grades and a 4.28x Delta. That describes the grading profile; it is not financial advice.