PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $5.69 |
| PSA 7 | $15.25 |
| PSA 8 | $32.75 |
| PSA 9 | $59.99 |
| PSA 10 | $591.53 |
| BGS 10 | $769 |
| CGC 10 | $355 |
| SGC 10 | $355 |
Market context: ungraded price +36.1% over 30 days. -6.6% over 90 days. PSA 10 premium: 104.0× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-topsun/pokemon-japanese-topsun-cloyster-blue-back-91