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PSA 10: 1 sale, last 45 days · Oct 25, 2026 · checked Oct 27, 2026
PSA 9: Median of 2 PSA 9 sales in the last 90 days, latest 2026-10-06. Grade 9 guide (all graders): $23.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
GemDelta shows Professor's Research (Crown Zenith #150) at $1.85 market price (TCGplayer market). Its Delta multiple is 16.8x.
A PSA 10 Professor's Research (Crown Zenith #150) is currently shown at $31.00, the only PSA 10 sale in the last 45 days (Oct 25, 2026).
GemDelta records a 52.6% gem rate for Professor's Research (Crown Zenith #150), with 173 PSA 10 copies out of 329 total PSA grades and a 16.8x Delta. That describes the grading profile; it is not financial advice.
| Date | Listing | Sale |
|---|---|---|
| Oct 25, 2026 | 2023 POKEMON SWORD & SHIELD CROWN ZENITH FULL ART/PROFESSOR'S RESEARCH PSA 10 #150 | $31.00 |
| Jun 29, 2026 | 2023 POKEMON SWORD & SHIELD CROWN ZENITH FULL ART/PROFESSOR'S RESEARCH PSA 10 #150 | $34.00 |
| May 2, 2026 | 2023 POKEMON SWORD & SHIELD CROWN ZENITH FULL ART/PROFESSOR'S RESEARCH PSA 10 #150 | $43.00 |