Dashboard
PSA 10: PriceCharting; last PSA 10 sale May 30, 2026
GemDelta shows Professor's Research (Sword & Shield #209) at $3.84 market price (TCGplayer market). Its Delta multiple is 8.49x.
A PSA 10 Professor's Research (Sword & Shield #209) is currently shown at $36.50. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 61.1% gem rate for Professor's Research (Sword & Shield #209), with 433 PSA 10 copies out of 709 total PSA grades and a 8.49x Delta. That describes the grading profile; it is not financial advice.
| Date | Sale |
|---|---|
| May 30, 2026 | $33.00 |
| Apr 15, 2026 | $40.00 |
| Mar 27, 2026 | $49.83 |
| Mar 6, 2026 | $26.99 |