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Professor's Research (Professor Oak) Celebrations #23 Pokémon card
Rare Holo

Professor's Research (Professor Oak) Celebrations #23

Card #23 · Illustrated by KIYOTAKA OSHIYAMA
TrainerSupporter
Ungraded · blended
$0.20
46.9% · 30d
Range $0 → $0
4 grading companies tracked
Confidence high · How we price →
Raw$0.20
PSA 970.4× raw$14
See live listings on TCGplayer →

Professor's Research (Professor Oak) is a Rare Holo Pokémon card from Celebrations (#23), illustrated by KIYOTAKA OSHIYAMA. It's a Supporter Trainer card. Its current blended market value is $0.20 ungraded. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.

Prices last updated 2 July 2026.

Raw price by condition
Holofoil · live market via TCGplayer
NMNear Mint$0.18
DMGDamaged$0.10
7-day 28.6%
30-day 45.5%
90-day 18.2%
All-time high$0
All-time low$0
Graded prices
Ungraded (raw)$0.17
PSA graded price estimates by grade
GradeRelative valuePrice
PSA 9$14$8$19
PSA 8.5$13$13$13
PSA 8$11$8$14
PSA 7$9$5$13
PSA 6$8$7$10
“Sold” = median of real recent eBay sold listings at that grade. Other figures are blended marketplace estimates. Confidence reflects the price spread — not PSA-official values.

Price history · raw near-mint

1 Aug 20231 Jul 2026
Current
$1.29
Period high
$1.40
Period low
$0.59
Change
30.3%

Recent sold prices

No recent sold listings tracked.

Should you grade it?

$56
Raw $0.20 → graded PSA 9$14.08
after ~$70.13 grading fee → 70.4× the raw value
Target gradeEst. valueGrading feeNet vs rawMultiple
PSA 9$14.08$70.13$5670.4×
PSA 8.5$12.50$70.12$5862.5×
PSA 8$11.18$70.1$5955.9×

Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Real outcome depends on the grade achieved; PSA 10 is best-case.

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Where to buy

Check recent sold prices

Cross-market prices

10% spread
TCGplayer · cheapest$0
Cardmarket · dearest$0

Currently 10% cheaper on TCGplayer than Cardmarket. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.

Market signal

Momentum · 30dFalling -47%
Cross-marketMarkets agree 10% gap

Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.

🇪🇺 Cardmarket price · Europe

Cardmarket · Europe's largest card market$0

Card text

Discard your hand and draw 7 cards.

You may play only 1 Supporter card during your turn.

Card details

Number#23
RarityRare Holo
SupertypeTrainer
SubtypesSupporter
Card IDcel25-23
SourceAggregated marketplaces

Other Professor's Research (Professor Oak) cards

There are 2 different Professor's Research (Professor Oak) printings — make sure you're valuing the right one. This is Celebrations #23 (Rare Holo).

More from Celebrations

Frequently asked questions

How much is Professor's Research (Professor Oak) (Celebrations #23) worth?

As of 2 July 2026, Professor's Research (Professor Oak) from Celebrations is worth approximately $0.20 ungraded (near-mint). Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.

Is Professor's Research (Professor Oak) rare?

Professor's Research (Professor Oak) is a Rare Holo card from Celebrations (card #23), illustrated by KIYOTAKA OSHIYAMA. Its current blended market value is $0.20 ungraded.