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Prices sourced from TCGPlayer and CardMarket. Not affiliated with Nintendo, The Pokemon Company, or any card marketplace.

Home / Japanese card prices / HeartGold Collection / Professor Oak's New Theory

Professor Oak's New Theory

HeartGold Collection

Japanese cardSet: HeartGold CollectionNumber: 068Updated 9/11/2026

TCGPlayer

eBay avg

$1.98

Variants

PSA 9

Variant

Price History

In the app

Price movement over time is available in the PokiFrame app.

eBay Sold Prices

0 sales

Raw0 sales

$1.98

Graded Prices

1 sales

Average sold prices by grading company. Grades run 1–10 — a 10 (Gem Mint) carries the biggest premium, with PSA, CGC, and BGS the most widely traded grades.

109.598.58

PSA

1 sold

About Professor Oak's New Theory

Professor Oak's New Theory is Japanese card 068 from HeartGold Collection.

Raw and graded (PSA, CGC, BGS) prices for Professor Oak's New Theory appear above as sold-listing data becomes available.

PokiFrame keeps Japanese pricing separate and sources sold-listing data so you can value Professor Oak's New Theory without mixing English and Japanese markets.

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