Should you grade Gyarados #24?

Borderline

+$89.30

net at PSA 10, but the gem rate is 6.2% — profitable only if it gems

The ledger

Raw card$3.99
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$29.22
PSA 10 sale$217.50
Net at PSA 10+$89.30
Net if it grades PSA 9 instead$-59.57

6.2% of the 32 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.