Should you grade Thundurus #50?

Borderline

+$2.20

net at PSA 10, but the gem rate is 10.2% — profitable only if it gems

The ledger

Raw card$2.61
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$15.70
PSA 10 sale$115.50
Net at PSA 10+$2.20
Net if it grades PSA 9 instead$-73.70

10.2% of the 59 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.