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PSA 10: PriceCharting · last PSA 10 sale $135.00 on Aug 16, 2026 · checked Oct 27, 2026
PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-09-10. Grade 9 guide (all graders): $26.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Pheromosa GX (Promo #SM66) at $14.10 market price (TCGplayer market). Its Delta multiple is 8.26x.
A PSA 10 Pheromosa GX (Promo #SM66) is currently shown at $117. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 47.4% gem rate for Pheromosa GX (Promo #SM66), with 36 PSA 10 copies out of 76 total PSA grades and a 8.26x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Aug 16, 2026 | Pheromosa GX Ultra Rare Black Star Promo SM66 Pokemon SM Promos PSA 10 #SM66 | $135.00 |
| Jun 15, 2026 | 2017 POKEMON SM BLACK STAR PROMO #SM66 PHEROMOSA GX PSA 10 #SM66 | $148.00 |