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PSA 10: PriceCharting · last PSA 10 sale $6601.00 on Jul 30, 2026 · checked Oct 25, 2026
PSA 9: Median of 12 PSA 9 sales in the last 90 days, latest 2026-10-13. Grade 9 guide (all graders): $429.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Mewtwo (Promo #SM77) at $30.51 market price (TCGplayer market). Its Delta multiple is 178x.
A PSA 10 Mewtwo (Promo #SM77) is currently shown at $5,432. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 3.69% gem rate for Mewtwo (Promo #SM77), with 39 PSA 10 copies out of 1,058 total PSA grades and a 178x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Jul 30, 2026 | 2017 POKEMON MEWTWO-HOLO PROMO-S.L. PIN COLL SM BLACK STAR PROMO #SM77 PSA 10 #SM77 | $6601.00 |
| Jun 21, 2026 | 2017 POKEMON SM BLACK STAR PROMO #SM77 MEWTWO-HOLO PSA 10 #SM77 | $8000.00 |
| May 3, 2026 | Pokemon 2017 Mewtwo SM77 Holo Shining Legends Promo GEM MINT PSA 10 #SM77 | $3999.99 |