Should you grade Sigilyph #66?

Borderline

+$23.41

net at PSA 10, but the gem rate is 13.3% — profitable only if it gems

The ledger

Raw card$1.55
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$18.78
PSA 10 sale$138.73
Net at PSA 10+$23.41
Net if it grades PSA 9 instead$-81.33

13.3% of the 60 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.