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PSA 10: Median of 3 sales, last 45 days · newest Oct 13, 2026 · checked Oct 25, 2026
PSA 9: Median of 2 PSA 9 sales in the last 90 days, latest 2026-10-21. Grade 9 guide (all graders): $82.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Xerneas-GX (Forbidden Light #139) at $65.73 market price (TCGplayer market). Its Delta multiple is 18.3x.
A PSA 10 Xerneas-GX (Forbidden Light #139) is currently shown at $1,200, the median of 3 PSA 10 sales in the last 45 days (newest Oct 13, 2026).
GemDelta records a 47.1% gem rate for Xerneas-GX (Forbidden Light #139), with 184 PSA 10 copies out of 391 total PSA grades and a 18.3x Delta. That describes the grading profile; it is not financial advice.