Voltorb #30 from Shining Legends is a common card that currently sells for about $0.25 ungraded and around $0.99 at grade 9.5. A grade 9.5 copy sells for around $0.99, about 4× the $0.25 raw price, so high-grade copies are worth grading.
Price by Grade
Recent market prices for graded copies of Voltorb
Grade
Market Price
vs Raw
9.5
$0.99
4×
Raw (ungraded)
$0.25
1×
Worth grading? A grade 9.5 copy sells for around $0.99, about 4× the $0.25 raw price, so high-grade copies are worth grading.