PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.23 |
| PSA 9 | $17.18 |
| PSA 10 | $26.1 |
| BGS 10 | $34 |
| CGC 10 | $16 |
| SGC 10 | $16 |
TCGplayer market price: $3.59 (as of 2026-08-29)
Market context: ungraded price -12.9% over 30 days. -14.1% over 90 days. PSA 10 premium: 8.1× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-blue-sky-stream/pokemon-japanese-blue-sky-stream-schoolboy-78