Karn Liberated #4 from Modern Masters 2015 is a mythic card that currently sells for about $4.14 ungraded and around $11.50 at grade 7. A grade 7 copy sells for around $11.50, about 2.8× the $4.14 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Karn Liberated
Grade
Market Price
vs Raw
7
$11.50
2.8×
Raw (ungraded)
$4.14
1×
Worth grading? A grade 7 copy sells for around $11.50, about 2.8× the $4.14 raw price, so high-grade copies are worth grading.