Vaporeon V #172 from Evolving Skies is a rare card that currently sells for about $20.43 ungraded, with graded copies ranging from $9.50 at grade 7 to $76.95 at grade 10. A grade 10 copy sells for around $76.95, about 3.8× the $20.43 raw price, so high-grade copies are worth grading.