Graded Market · 7 completed sales
Professor's Research [Professor Willow] (Full Art) graded prices.
As of August 19, 2026, Professor's Research [Professor Willow] (Full Art) (Pokémon GO #078) in PSA 10 sells for a median of $34.56, based on 7 real eBay completed sales; the raw copy’s reference price is $2.26 — a 15.3× grading premium at the top grade.
Across Pokémon GO, PSA 10 copies sell for 21.2× their raw reference price on average (32 cards, 2,601 PSA 10 completed sales tracked).
PSA · Professor's Research [Professor Willow] (Full Art)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $34.56 | 6 | 15.3× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.