Should you grade Mew #151?

Borderline

+$561.21

net at PSA 10, but the gem rate is 1.3% — profitable only if it gems

The ledger

Raw card$2.94
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$101.14
PSA 10 sale$760.28
Net at PSA 10+$561.21
Net if it grades PSA 9 instead$-54.95

1.3% of the 79 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.