Should you grade Nidoking #11?

Borderline

+$860.51

net at PSA 10, but the gem rate is 2.4% — profitable only if it gems

The ledger

Raw card$23.65
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$150.01
PSA 10 sale$1129.16
Net at PSA 10+$860.51
Net if it grades PSA 9 instead+$80.48

2.4% of the 15,867 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.