Should you grade Dark Golduck #37?

Borderline

+$24.70

net at PSA 10, but the gem rate is 7.4% — profitable only if it gems

The ledger

Raw card$3.03
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$19.20
PSA 10 sale$141.92
Net at PSA 10+$24.70
Net if it grades PSA 9 instead$-69.51

7.4% of the 243 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.