Should you grade Dark Golduck [1st Edition] #37?

Borderline

+$135.27

net at PSA 10, but the gem rate is 12.2% — profitable only if it gems

The ledger

Raw card$10.07
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$37.17
PSA 10 sale$277.50
Net at PSA 10+$135.27
Net if it grades PSA 9 instead$-58.46

12.2% of the 1,939 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.