Gyarados-GX #18 from Crimson Invasion is a reverse holo holo_rare card that currently sells for about $10.50 ungraded, with graded copies ranging from $14.79 at grade 7 to $161 at grade 10. A grade 10 copy sells for around $161, about 15× the $10.50 raw price, so high-grade copies are worth grading.