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HeartGold SoulSilver101 / 123

Professor Oak's New Theory

Uncommon

Market valueNormal

€0.30

A weekly note when its value moves

Printings

Pick a printing to see its value and graded prices.

  • Shown in the rankings

    €0.30up 1,400.0% over 30 days

  • €2.74unchanged over 30 days

  • €1.99unchanged over 30 days

  • Valuation pending

  • Valuation pending

  • approximately €0.30unchanged over 30 days

  • approximately €1.00unchanged over 30 days

  • Valuation pending

  • €8.99unchanged over 30 days

  • approximately €2.49unchanged over 30 days

  • €0.74unchanged over 30 days

  • Valuation pending

Graded3 prices

Market value, with the lowest listing underneath.

Market prices of graded copies by grading company and grade
GraderGrade 10Grade 9Grade 7
PSA€898from €898€22from €22€3from €3

US market, convertedas of 30 Oct 2026

Where to buy

Values as of 30 Oct 2026