Should you grade Glaceon EX #20?

Borderline

+$148.04

net at PSA 10, but the gem rate is 32.3% — profitable only if it gems

The ledger

Raw card$12.48
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$39.49
PSA 10 sale$295.00
Net at PSA 10+$148.04
Net if it grades PSA 9 instead$-78.70

32.3% of the 601 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.