Should you grade Ditto #18?

Borderline

+$201.10

net at PSA 10, but the gem rate is 13.1% — profitable only if it gems

The ledger

Raw card$8.87
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$47.04
PSA 10 sale$352.00
Net at PSA 10+$201.10
Net if it grades PSA 9 instead$-56.56

13.1% of the 771 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.