Pikachu #HGSS03 from HGSS Black Star Promos is a reverse holo promo card that currently sells for about $16.51 ungraded, with graded copies ranging from $30.03 at grade 7 to $1,890 at grade 10. A grade 10 copy sells for around $1,890, about 115× the $16.51 raw price, so high-grade copies are worth grading.