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PSA 10: PriceCharting · last PSA 10 sale $405.00 on Jul 12, 2026 · checked Oct 25, 2026
PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-10-17. Grade 9 guide (all graders): $82.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Brock's Golem (Gym Heroes #20) at $34.32 market price (TCGplayer market). Its Delta multiple is 13.9x.
A PSA 10 Brock's Golem (Gym Heroes #20) is currently shown at $475. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 21.8% gem rate for Brock's Golem (Gym Heroes #20), with 62 PSA 10 copies out of 284 total PSA grades and a 13.9x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Jul 12, 2026 | Pokemon Brock's Golem Gym Heroes 20/132 1st Edition PSA 10 20/132 | $405.00 |
| Jun 14, 2026 | Pokemon Brock's Golem Gym Heroes 1st Edition Rare #20 PSA 10 Gem Mint | $576.66 |
| May 19, 2026 | Pokemon Gym Heroes Brock’s Golem Psa 10 1st Edi | $900.00 |
| May 4, 2026 | Pokemon TCG Brock's Golem 020/132 Gym Heroes 1st Edition PSA 10 020/132 | $162.50 |