Should you grade Thundurus EX #38?

Borderline

+$3.85

net at PSA 10, but the gem rate is 6.0% — profitable only if it gems

The ledger

Raw card$7.25
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$16.67
PSA 10 sale$122.76
Net at PSA 10+$3.85
Net if it grades PSA 9 instead$-71.22

6.0% of the 50 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.