Persian #27 from HeartGold & SoulSilver is a reverse holo rare card that currently sells for about $2.05 ungraded, with graded copies ranging from $16.50 at grade 9 to $58.71 at grade 10. A grade 10 copy sells for around $58.71, about 29× the $2.05 raw price, so high-grade copies are worth grading.