Professor's Research [Professor Oak]
![Professor's Research [Professor Oak] 023/025 from Celebrations](/cards/250318_400.jpg)
- Set
- Celebrations
- Number
- 023/025
- Rarity
- Holo Rare
- Artist
- KIYOTAKA OSHIYAMA
- Released
- Oct 8, 2021
Sold price movement
- 12 months ago
- $0.99£0.75€0.87
- Today
- $0.99£0.75€0.87
- Change
- +$0+£0+€0 (+0.0%)
Market activity
| Price type | Pop share | PopulationPop | Sold 90d | Median | Price |
|---|---|---|---|---|---|
| Raw | – | 28 | $1.65£1.24€1.45 | $0.99£0.75€0.87 | |
| PSA 2 | 1 | – | – | – | |
| PSA 3 | 1 | – | – | – | |
| PSA 4 | 1 | – | – | – | |
| PSA 5 | 1 | – | – | – | |
| PSA 6 | 31 | – | – | $8.79£6.62€7.74 | |
| PSA 7 | 100 | 1 | – | $5.38£4.05€4.74 | |
| PSA 8 | 327 | 5 | $9.60£7.23€8.45 | $10.55£7.94€9.29 | |
| PSA 9 | 392 | 8 | $11.48£8.64€10.11 | $11.63£8.75€10.24 | |
| CGC/BGS 9.5 | – | – | – | $13£9.78€11.45 | |
| PSA 10 | 77 | 3 | – | $280.85£211.38€247.34 | |
About these prices
8.3% of copies sent to PSA come back a 10. Sold and median are 90 days of PSA sales. The 9.5 is a CGC and BGS grade, so it carries no PSA population.
Priced from 441 completed sales, updated Sep 30, 2026.
Price history
Recent sales
441 completed listings on eBay UK, eBay, Fanatics Collect7🟨 PSA 7 Pokémon Celebrations Professor’s Research #023/025eBay UK · Best Offer Accepted$7.97£6€7.0210
2021 Pokemon Sword & Shield Celebrations Holo Professor's Research #23 CGC 10 GEM MINTBuy it now$29£21.83€25.54Show 288 more, the newest 300 of 441
Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon 023/025$3£2.26€2.64Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$1.59£1.20€1.40POKEMON PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 HOLO RARE CELEBRATIONS NM 023/025$0.99£0.75€0.87
2021 Professor's Research 23/25 - Holo Rare Celebrations NM/MT Pokémon Prof Oak 23/25$0.99£0.75€0.87Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM/M 023/025$1.99£1.50€1.75Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$1.49£1.12€1.31Pokemon Professor's Research 023/025 Professor Oak Celebrations 25th Anniversary 023/025$1£0.75€0.889Pokemon Celebrations Professor's Research. 023/025 PSA 9eBay UK · Best Offer Accepted$39.86£30€35.10Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$0.99£0.75€0.87Professor's Research [Professor Oak] Celebrations 023/025 LP-NM HOLO Pokémon 023/025$3£2.26€2.64PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 HOLO R CELEBRATIONS POKEMON NM/M 023/025$2.49£1.87€2.19Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon LP 023/025$2.15£1.62€1.89Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon LP 023/025$1.43£1.08€1.26Pokemon Celebrations Professor's Research Holo Rare Card 023/025 NM 023/025$0.99£0.75€0.8710Pokemon 2021 Celebrations Professors Research 023/025 PSA 10 022/025$364.37£274.24€320.8910Pokemon 2021 Celebrations Professors Research 023/025 PSA 10eBay UK · Best Offer Accepted$358.73£270€315.92Pokemon TCG Professor's Research 023/025 Holo Rare Celebrations NM 023/025$1.48£1.11€1.30Professor's Research (Professor Oak) 023/025 Holo Celebrations Pokemon Holo NM/M 023/025$1.79£1.35€1.58Pokemon TCG Professors Research Professor Oak 23/25 Celebrations Holo NM 23/25$1.79£1.35€1.58Pokemon Celebrations PROFESSOR'S RESEARCH 25th Anniversary Holofoil #023/025 023/025$2.99£2.25€2.63Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM/M 023/025$2.99£2.25€2.63Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$1.69£1.27€1.49Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$2£1.51€1.76Professor's Research Holo Rare Trainer Celebrations Pokemon TCG Card 023/025 #023$1.50£1.13€1.32Graded 8 Professors Research Holo Rare Pokemon 2021 Celebrations 023/025 - GGS 8 023/025$5.39£4.06€4.75Professor's Research (Professor Oak) 023/025 Holo Rare Celebrations Pokemon NM 023/025$1.49£1.12€1.31PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 HOLO CELEBRATIONS POKEMON 023/025$1.79£1.35€1.58PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 HOLO RARE CELEBRATIONS POKEMON NM 023/025$1.99£1.50€1.758Professors Research Pokemon 2021 Celebrations 023/025 - CGC 8eBay UK · Best Offer Accepted$9.96£7.50€8.77PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 RARE HOLO CELEBRATIONS POKEMON NM/M 023/025$1.99£1.50€1.75PROFESSOR'S RESEARCH (PROFESSOR OAK) 023/025 HOLO RARE CELEBRATIONS POKEMON NM/M 023/025$1.99£1.50€1.7592021 Pokémon Celebrations Professor’s Research #023/025 PSA 9 Mint 023/025$9.99£7.52€8.8092021 Pokémon Celebrations Professor’s Research #023/025 PSA 9 Mint 023/025$9.99£7.52€8.8082021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8$5.50£4.14€4.8472021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 7$3.25£2.45€2.8692021 Pokemon Celebrations Professor's Research #023 PSA 9, New Slab, Free Ship! #023$13.50£10.16€11.8982021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8$5.53£4.16€4.879Pokémon Professor's Research Celebrations 023/025 English 2021 PSA 9 023/025$5£3.76€4.4082021 Pokemon Celebrations Professor's Research #023 PSA 8, New Slab, Free Ship! #023$16.99£12.79€14.9672021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 7$7.50£5.64€6.619PROFESSOR'S RESEARCH 2021 POKEMON CELEBRATIONS RARE HOLO #023/025 CGC 9 Q1345 023/025$3.25£2.45€2.867PSA 7 Professor's Research 023/025 Pokemon Celebrations 25th Anniversary 023/025$0.99£0.75€0.877PSA 7 Professor's Research 023/025 Pokemon Celebrations 25th Anniversary 023/025$0.99£0.75€0.8782021 Pokemon Celebrations Professor's Research Card PSA 8 NM-MT 023/025 #023$5.50£4.14€4.84More from Celebrations
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PSA has graded 930 copies. Where they landed:
Why the verdict weights the odds
Only 8.3% of copies reach a 10, which is why the top price is the wrong number to plan around. Weighting each grade’s PSA price by these odds, a submission is worth $32.48£24.45€28.60 on average against $100.98£76€88.93 for the card plus $79.99£60.20€70.44 at Regular, the cheapest level PSA will insure it at. That loses $68.50£51.56€60.33, so a copy is worth more raw.
What CGC copies sold for
Sold prices from listings that named the grader and the grade, not asking prices, and not a PSA figure converted across. A CGC 9 runs about 0.44x the PSA 9 on the cards where we hold both, but the spread is wide enough that it is only worth quoting where copies actually traded, which is what these are. The count beside each price is how many.
CGC 9 and 9.5 are one row on purpose. A CGC 9.5 sells for 3% more than a 9 across the corpus and is the cheaper of the two on nearly half of cards, so the market is not pricing them apart and splitting them here would invent a distinction. BGS is left split because there the same test says a 9.5 really is worth about 30% more.
| Grade | Median sold | Sales |
|---|---|---|
| CGC 9 or 9.5 | $5£3.76€4.40 | 7 |
Card facts
- Card number
- 023/025
- Rarity
- Holo Rare
- Illustrator
- KIYOTAKA OSHIYAMA
- Set released
- Oct 8, 2021
- PSA population, all printings
- 930
- Printings priced
- 1
Looking for a different one? All 91 Professor's Research cards we price →
The same card in other sets
What moves the price of this card
The Professor's Research [Professor Oak] on this page is the Holofoil printing from Celebrations, and it trades at $0.31£0.23€0.27 in near mint condition. Only one printing of this card was produced, so there is no cheaper version to confuse it with.
Graded, it runs PSA 6 $8.79£6.62€7.74, PSA 7 $5.38£4.05€4.74, PSA 8 $10.55£7.94€9.29, PSA 9 $11.63£8.75€10.24, CGC/BGS 9.5 $13£9.78€11.45, PSA 10 $280.85£211.38€247.34. PSA has graded 930 copies of it. 441 completed sales are on file.
What is a PSA 10 Professor's Research [Professor Oak] worth?
A PSA 10 Professor's Research [Professor Oak] from Celebrations sells for $280.85. 8.3% of the copies PSA has graded came back a 10, so that price is the best case rather than the one a submission should expect.
Is Professor's Research [Professor Oak] from Celebrations worth grading?
On the numbers, no. The average submission is worth $32.48 with every grade weighted by how often this card comes back at it, against $0.99 for a raw copy plus $99.99 to send it through PSA Regular, so it loses $68.50.
Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $280.85£211.38€247.34. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.