Should you grade Dark Blastoise #3?

Borderline

+$997.69

net at PSA 10, but the gem rate is 0.6% — profitable only if it gems

The ledger

Raw card$115.70
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$185.03
PSA 10 sale$1393.41
Net at PSA 10+$997.69
Net if it grades PSA 9 instead+$145.90

0.6% of the 11,361 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.