Professor's Research #12 – s8a-G: 25th Anniversary Golden Box

Pokémon TCG · s8a-G: 25th Anniversary Golden Box · Japanese · #12

Professor's Research #12 (Japanese) price

Name: Professor's Research #12 (Japanese, s8a-G: 25th Anniversary Golden Box)
Brand: Pokémon
SKU: JP-S8AG-12
Price: 3.49 USD

s8a-G: 25th Anniversary Golden Box12

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Market prices

$3.49TCGplayer market price · Near Mint

€0.58Cardmarket price trend · Near Mint

−6.7%30-day change · TCGplayer

#9 of 16Value rank in the set

90-day range · TCGplayer

$3.49$3.82

Price history chartSee it in Sparkl s8a-G: 25th Anniversary Golden Box master set · 16 cardsOpen in Sparkl Graded prices · PSA, CGC, BGSIn Sparkl Pro

Professor's Research (#12) is a card from the Japanese Pokémon set s8a-G: 25th Anniversary Golden Box. Near Mint, it has a market price of about $3.49 on TCGplayer and €0.58 on Cardmarket (updated November 11, 2026). Over the last 7 days, its TCGplayer market price fell 6.7%. Over the last 30 days, its TCGplayer market price fell 6.7%. Over the last 90 days, its TCGplayer market price fell 8.6%. Its 90-day TCGplayer market price range is $3.49 to $3.82. It is the ninth most valuable card in the set. Converted to dollars, its Cardmarket price is 81.6% lower than its TCGplayer price.

Professor's Research #12 prices by finish

Finish	TCGplayer	Cardmarket
Normal	$3.49	€0.58

Near Mint prices: TCGplayer market price, Cardmarket price trend, updated November 11, 2026.

Price changes by finish

Finish	Price	7 days	30 days	90 days	90-day range
Normal	TCGplayer market price	−6.7%	−6.7%	−8.6%	$3.49 – $3.82

Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.

Price charts, graded prices from PSA, CGC, BGS, SGC, TAG and ACE, PSA population counts and recent sold listings are in Sparkl Pro.

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<p style="font:12px/1.4 system-ui,sans-serif;margin:4px 0 0">Prices: <a href="https://sparkl.gg/pokemon/japanese/s8a-g-25th-anniversary-golden-box/professors-research-12/">Professor&#39;s Research on Sparkl</a></p>

About this card

Set: s8a-G: 25th Anniversary Golden Box (Japanese)
Number: 12
Finishes: Normal
Cardmarket vs TCGplayer: −81.6% after conversion ($1.1081 per euro)
Released: December 1, 2021
Print language: Japanese

How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.

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