Melmetal V #47 from Pokémon GO is a reverse holo holo_rare card that currently sells for about $1.87 ungraded, with graded copies ranging from $3.75 at grade 7 to $37.89 at grade 10. A grade 10 copy sells for around $37.89, about 20× the $1.87 raw price, so high-grade copies are worth grading.