Professor's Research (Professor Oak) PSA 9
PSA 9 price history
There is no fair value yet for a PSA 9 Professor's Research (Professor Oak) (Celebrations 23/25). The median of 29 English sales in the last 12 months is €11.68.
Terms used:Sales 12m Median Grade PSA
Completed sales from eBay, Fanatics Collect and Goldin · live asks from Cardmarket · How fair value works · USD at the ECB rate of Oct 26, 2026
Live PSA 9 asks
Cardmarket offers in EUR, cheapest first
No live Cardmarket asks for this grade right now.
Recent PSA 9 sales
The last completed sales in every language, in EUR
| Date | Language | Marketplace | Title | Price |
|---|---|---|---|---|
| Oct 17, 2026 | en | ebay | 2021 Pokemon Celebrations #023 Professor's Research Oak PSA 9 023/025 [eBay] | €13.32 |
| Oct 16, 2026 | en | ebay | 2021 Pokémon Celebrations Professor’s Research #023/025 PSA 9 Mint 023/025 [eBay] | €13.29 |
| Oct 16, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €176.84 |
| Oct 16, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €12.00 |
| Oct 11, 2026 | en | ebay | 2021 POKEMON SWSH CELEBRATIONS PROFESSOR'S RESEARCH PROFESSOR OAK PSA 9 023/025 [eBay] | €8.76 |
| Oct 11, 2026 | en | ebay | 2021 POKEMON SWSH CELEBRATIONS PROFESSOR'S RESEARCH PROFESSOR OAK PSA 9 023/025 [eBay] | €8.45 |
| Oct 8, 2026 | en | ebay | 2021 Pokemon Celebrations Professor's Research #023 PSA 9 #023 [eBay] | €13.41 |
| Oct 5, 2026 | en | ebay | 2021 Pokemon Celebrations Professor's Research #023 PSA 9 #023 [eBay] | €13.39 |
| Sep 25, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €11.68 |
| Sep 19, 2026 | en | ebay | 🧪⚡2021 Pokemon Celebrations Professors Research #023 PSA 9 Holo Professor Oak🔥 023/025 [eBay] | €13.09 |
| Sep 8, 2026 | en | ebay | 2021 Pokemon Celebrations Professors Research Holo Rare 23/25 PSA MINT 9 023/025 [eBay] | €17.22 |
| Aug 15, 2026 | en | ebay | Pokemon Celebrations Professor's Research. 023/025 PSA 9 [eBay] | €34.56 |
| Aug 13, 2026 | en | ebay | 2021 Professors Research Celebrations Pokemon #023 PSA 9 023/025 [eBay] | €11.23 |
| Aug 13, 2026 | en | ebay | 2021 Professors Research Celebrations Pokemon #023 PSA 9 023/025 [eBay] | €11.23 |
| Jul 23, 2026 | en | ebay | 2021 Pokémon Celebrations Professor’s Research #023/025 PSA 9 Mint 023/025 [eBay] | €8.77 |
| Jul 20, 2026 | en | ebay | PSA 9 MINT - 2021 POKEMON CELEBRATIONS 023 PROFESSOR'S RESEARCH FOIL [eBay] | €8.75 |
| Jul 18, 2026 | en | ebay | 2021 Pokémon Celebrations Professor’s Research #023/025 PSA 9 Mint 023/025 [eBay] | €8.74 |
| Jul 5, 2026 | en | ebay | 2021 Pokemon Celebrations Professor's Research #023 PSA 9, New Slab, Free Ship! #023 [eBay] | €11.79 |
| Jun 30, 2026 | en | ebay | Pokémon Professor's Research Celebrations 023/025 English 2021 PSA 9 023/025 [eBay] | €4.39 |
| May 28, 2026 | en | ebay | 2021 Pokemon Celebrations Professor's Research #023 PSA 9 [eBay] | €21.52 |
| May 25, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €12.87 |
| May 16, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €10.99 |
| May 16, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €11.52 |
| May 4, 2026 | en | ebay | 2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 9 #023 [eBay] | €11.97 |
| Apr 21, 2026 | en | ebay | 2021 Pokémon Celebrations Professors Research #023 PSA 9 023/025 [eBay] | €4.24 |
Card details
- Set
- Celebrations
- Number
- 23/25
- Rarity
- Holo Rare
- Illustrator
- KIYOTAKA OSHIYAMA
By language
PSA 9 fair values, sales and live asks for every printing language
| Language | Fair value | Confidence | Sales 12m | Last sale | Population | Offers | Lowest ask |
|---|---|---|---|---|---|---|---|
| en | – | – | 29 | Oct 17, 2026 · €13.32 | – | – | – |
PSA population trend
How many copies PSA has graded and how many came back a 10.
No PSA population data for this card yet.
Frequently asked questions
How much is a PSA 9 Professor's Research (Professor Oak) worth?
There is no fair value yet for a PSA 9 Professor's Research (Professor Oak) (Celebrations 23/25). The median of 29 English sales in the last 12 months is €11.68.
Other grades
Professor's Research (Professor Oak) grades with at least three sales in the last 12 months