Dire Fleet Ravager #104 from Ixalan is a foil mythic card that currently sells for about $2.51 ungraded and around $5.36 at grade 7. A grade 7 copy sells for around $5.36, about 2.1× the $2.51 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Dire Fleet Ravager
Grade
Market Price
vs Raw
7
$5.36
2.1×
Raw (ungraded)
$2.51
1×
Worth grading? A grade 7 copy sells for around $5.36, about 2.1× the $2.51 raw price, so high-grade copies are worth grading.