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PSA 10: PriceCharting · last PSA 10 sale $2027.40 on Sep 1, 2026 · checked Oct 26, 2026
PSA 9: Median of 3 PSA 9 sales in the last 90 days, latest 2026-09-24. Grade 9 guide (all graders): $250.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Slowking (Great Encounters #28) at $27.93 market price (TCGplayer market). Its Delta multiple is 71.1x.
A PSA 10 Slowking (Great Encounters #28) is currently shown at $1,986. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 24.2% gem rate for Slowking (Great Encounters #28), with 15 PSA 10 copies out of 62 total PSA grades and a 71.1x Delta. That describes the grading profile; it is not financial advice.
The Reverse Holo version of Slowking (Great Encounters #28) is shown at $27.93 market price. That value is for this stored card variant, not the base printing.
| Date | Listing | Sale |
|---|---|---|
| Sep 1, 2026 | 2008 Pokemon Diamond & Pearl Great Encounters #28 Slowking Reverse Foil PSA 10 | $2027.40 |
| Aug 7, 2026 | 2008 Pokemon Diamond & Pearl Great Encounters #28 Slowking Reverse Foil PSA 10 | $2023.65 |