Caves of Koilos #245 from Magic Origins is a foil rare card that currently sells for about $2.32 ungraded and around $7.99 at grade 7. A grade 7 copy sells for around $7.99, about 3.4× the $2.32 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Caves of Koilos
Grade
Market Price
vs Raw
7
$7.99
3.4×
Raw (ungraded)
$2.32
1×
Worth grading? A grade 7 copy sells for around $7.99, about 3.4× the $2.32 raw price, so high-grade copies are worth grading.