Skuntank #15 from Diamond & Pearl is a reverse holo holo_rare card that currently sells for about $3.44 ungraded, with graded copies ranging from $10.77 at grade 7 to $20.50 at grade 10. A grade 10 copy sells for around $20.50, about 6× the $3.44 raw price, so high-grade copies are worth grading.