Should you grade Psyduck #20?

Borderline

+$514.55

net at PSA 10, but the gem rate is 39.9% — profitable only if it gems

The ledger

Raw card$76.00
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$105.17
PSA 10 sale$790.71
Net at PSA 10+$514.55
Net if it grades PSA 9 instead+$0.60

39.9% of the 2,424 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.