PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $1.03 |
| PSA 7 | $3.39 |
| PSA 9 | $17.54 |
| PSA 10 | $49.03 |
| BGS 10 | $64 |
| CGC 10 | $29 |
| SGC 10 | $29 |
TCGplayer market price: $0.93 (as of 2026-07-05)
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-heartgold-%26-soulsilver/pokemon-heartgold-%26-soulsilver-professor-oak-s-new-theory-101