PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $0.68 |
| PSA 9 | $12.96 |
| PSA 10 | $35.38 |
| BGS 10 | $46 |
| CGC 10 | $21 |
| SGC 10 | $21 |
TCGplayer market price: $0.55 (as of 2026-08-29)
Market context: ungraded price -29.9% over 30 days. -8.1% over 90 days. PSA 10 premium: 52.0× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-steam-siege/pokemon-steam-siege-gastrodon-29