Should you grade Blastoise EX #XY30?

Borderline

+$114.80

net at PSA 10, but the gem rate is 20.8% — profitable only if it gems

The ledger

Raw card$6.68
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$33.52
PSA 10 sale$250.00
Net at PSA 10+$114.80
Net if it grades PSA 9 instead$-66.50

20.8% of the 552 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.