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PSA 10: Last PSA 10 sale $11.50 on Oct 28, 2022 · checked Oct 27, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
A PSA 10 Professor's Research (Sword & Shield #178) is currently shown at $11.50. GemDelta labels this as the latest stored PSA 10 sale, which is older than the sales window; no sales were found inside that window.
The Reverse Holo version of Professor's Research (Sword & Shield #178) is shown at $0.32 market price. That value is for this stored card variant, not the base printing.
| Date | Listing | Sale |
|---|---|---|
| Oct 28, 2022 | 2020 PROFESSOR'S RESEARCH Pokemon Sword & Shield #178 HOLO PSA 10 gem mint! #178 | $11.50 |
| Apr 4, 2022 | PROFESSOR'S RESEARCH Reverse Foil 2020 Pokemon Sword & Shield #178 PSA 10 | $15.50 |