PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $3.99 |
| PSA 9 | $14.26 |
| PSA 10 | $45 |
| BGS 10 | $59 |
| CGC 10 | $24.95 |
| SGC 10 | $27 |
Market context: ungraded price +17.7% over 30 days. -4.5% over 90 days. PSA 10 premium: 11.3× ungraded.
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-mask-of-change/pokemon-japanese-mask-of-change-blissey-ex-121