Dive Down #53 from Ixalan is a foil common card that currently sells for about $1.20 ungraded and around $2.73 at grade 7. A grade 7 copy sells for around $2.73, about 2.3× the $1.20 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Dive Down
Grade
Market Price
vs Raw
7
$2.73
2.3×
Raw (ungraded)
$1.20
1×
Worth grading? A grade 7 copy sells for around $2.73, about 2.3× the $1.20 raw price, so high-grade copies are worth grading.