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Professor's Research (Professor Oak)
Celebrations23/25

Professor's Research (Professor Oak) PSA 8

Fair value · English
€11.10Medium 29 sales + estimate from PSA 8.5 (1 PSA 8.5 sale)
Sales 12m · all languages
29
Lowest ask
–
Live offers
0
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PSA 8 price history

A PSA 8 English Professor's Research (Professor Oak) (Celebrations 23/25) is worth about €11.10 (≈ $12.38), based on 29 sales in the last 12 months, blended with an estimate from PSA 8.5 (1 PSA 8.5 sale). Fair value updated Oct 28, 2026. About 6 in 10 sales land between €8.49 and €15.26. A PSA 8.5 is about €11.74 and a PSA 10 about €451.

Terms used:Fair value Sales 12m Range 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 27, 2026

Live PSA 8 asks

Cardmarket offers in EUR, cheapest first

No live Cardmarket asks for this grade right now.

Recent PSA 8 sales

The last completed sales in every language, in EUR

DateLanguageMarketplaceTitlePrice
Oct 23, 2026enebayPSA 8 - 2021 Pokemon Celebrations Professor's Research #023 023/025 [eBay]€8.93
Oct 21, 2026enebay2021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8 [eBay]€6.68
Oct 16, 2026enfanatics2021 Pokemon Sword & Shield Celebrations Professor's Research #23 PSA 8 NM-MT FIXED [Fanatics]€13.33
Oct 16, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€10.01
Sep 21, 2026enebay2021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8 [eBay]€9.01
Sep 3, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€8.61
Aug 24, 2026enebay2021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8 [eBay]€1.50
Jul 12, 2026enebayPROFESSOR'S RESEARCH POKEMON CELEBRATIONS EN 2021 023 PSA 8 [eBay]€12.70
Jul 6, 2026enebay2021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8 [eBay]€4.82
Jun 30, 2026enebay2021 Pokemon Celebrations Professor's Research: Professor Oak #023/025 PSA 8 [eBay]€4.85
Jun 23, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€13.16
Jun 20, 2026enebayPSA 8 - 2021 Pokemon Celebrations Professor's Research #023 023/025 [eBay]€13.08
Jun 8, 2026enebay2021 Pokemon Celebrations Professor's Research #023 PSA 8, New Slab, Free Ship! #023 [eBay]€14.72
May 16, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€11.61
May 16, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€8.38
May 16, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€8.38
May 15, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€9.89
May 4, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€10.68
Apr 17, 2026enebay2021 Pokemon Celebrations 023 Professors Research - PSA 8 #23 [eBay]€10.98
Apr 13, 2026enebayPSA 8 PROFESSOR'S RESEARCH #023 - Celebrations 2021 Pokemon Card [eBay]€17.11
Apr 12, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€6.40
Apr 9, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€11.98
Apr 5, 2026enebay2021 Pokemon Celebrations Professor's Research Card PSA 8 NM-MT 023/025 #023 [eBay]€4.77
Apr 4, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€6.51
Apr 1, 2026enebay2021 POKEMON CELEBRATIONS #023 PROFESSOR'S RESEARCH PSA 8 #023 [eBay]€6.46

Card details

Set
Celebrations
Number
23/25
Rarity
Holo Rare
Illustrator
KIYOTAKA OSHIYAMA

By language

PSA 8 fair values, sales and live asks for every printing language

Professor's Research (Professor Oak) PSA 8 prices by language
LanguageFair value Confidence Sales 12m Last salePopulation OffersLowest ask
en€11.1029 sales + estimate from PSA 8.5 (1 PSA 8.5 sale) Medium29Oct 23, 2026 · €8.93–––

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 8 Professor's Research (Professor Oak) worth?

A PSA 8 English Professor's Research (Professor Oak) (Celebrations 23/25) is worth about €11.10 (≈ $12.38), based on 29 sales in the last 12 months, blended with an estimate from PSA 8.5 (1 PSA 8.5 sale). Fair value updated Oct 28, 2026. About 6 in 10 sales land between €8.49 and €15.26. A PSA 8.5 is about €11.74 and a PSA 10 about €451.

Is a PSA 8 Professor's Research (Professor Oak) worth more than a PSA 8.5?

No. A PSA 8.5 is about €11.74, 1.1× a PSA 8 at about €11.10.

How fast does a PSA 8 Professor's Research (Professor Oak) sell?

None sold on EU venues in the last 90 days (7 copies on all venues), so there is no EU pace to time a sale from. Listed at €11.10, one copy nets about €4.23 on Cardmarket after fees.

Other grades

Professor's Research (Professor Oak) grades with at least three sales in the last 12 months

PSA1011 salesPSA929 salesPSA714 salesPSA67 salesCGC108 sales
All grades and raw prices of Professor's Research (Professor Oak)How fair value works