Professor's Research
Illustrated by Hideki Ishikawa · Sword & Shield series
Raw Market Value
$0.30
range $0.13 – $0.36
via TCGPlayer
Top graded value
$44.49
PSA 9
from real sold listings
19 recent sales tracked (180d).
Price History
Daily average sale price from eBay sold listings.
180d change
+$0.99 (+99.0%)
7D30D90D180D
Graded Prices
Verified prices across 2 grading services.
PSA
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| PSA 10 | normal | $8.50 | $8.50 | $8.50 | $8.50 |
| PSA 10 | reverseHolofoil | $10.50 | $10.50 | $10.50 | $10.50 |
| PSA 9 | holofoil | $44.00 | $44.58 | $45.15 | $44.49 |
| PSA 9 | normal | $20.00 | $20.50 | $22.00 | $20.93 |
| PSA 8 | holofoil | $6.50 | $10.50 | $11.50 | $10.30 |
| PSA 8 | normal | $1.25 | $7.00 | $13.00 | $4.89 |
CGC
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| CGC 10 | holofoil | $3.25 | $3.25 | $3.25 | $3.25 |
| CGC 10 | normal | $17.99 | $17.99 | $17.99 | $17.99 |
| CGC 9 | normal | $9.00 | $12.50 | $16.00 | $13.36 |
| CGC 9 | reverseHolofoil | $3.00 | $4.50 | $6.00 | $4.77 |
| CGC 8.5 | holofoil | $5.00 | $5.00 | $5.00 | $5.00 |
| CGC 8 | normal | $6.00 | $9.00 | $12.00 | $10.41 |
| CGC 7 | normal | $12.00 | $12.00 | $12.00 | $12.00 |
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Recent Sales onebay
Real sold listings, most recent first.
- Aug 12, 2026$1.98
- Jul 29, 2026$1.25
Final sold amounts in USD. Outbound links open the original eBay listing.
Other Professor's Research prints
Different printings across sets.
