PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $9.99 |
| PSA 7 | $22.64 |
| PSA 8 | $34.74 |
| PSA 9 | $82.68 |
| PSA 10 | $235.19 |
| BGS 10 | $306 |
| CGC 10 | $120.4 |
| SGC 10 | $141 |
TCGplayer market price: $14.37 (as of 2026-10-20)
Market context: ungraded price -4.7% over 30 days. +11.9% over 90 days. PSA 10 premium: 23.5× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-secret-wonders/pokemon-secret-wonders-gastrodon-west-sea-9