Should you grade Mewtwo & Mew GX #222?

Borderline

+$1121.78

net at PSA 10, but the gem rate is 34.1% — profitable only if it gems

The ledger

Raw card$171.71
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$212.53
PSA 10 sale$1601.01
Net at PSA 10+$1121.78
Net if it grades PSA 9 instead$-85.79

34.1% of the 2,121 copies PSA has graded came back a 10. Pop gem rates are a ceiling — centering and surface on your copy decide.

Prices from real completed sales, updated daily. Population data from PSA's public population report.