PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $0.4 |
| PSA 9 | $13 |
| PSA 10 | $41 |
| BGS 10 | $53 |
| CGC 10 | $25 |
| SGC 10 | $25 |
TCGplayer market price: $0.2 (as of 2026-08-29)
Market context: ungraded price -43.7% over 30 days. +8.1% over 90 days. PSA 10 premium: 102.5× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-steam-siege/pokemon-steam-siege-shellos-28