Unown [B] #66 from Diamond & Pearl is a reverse holo uncommon card that currently sells for about $2.27 ungraded, with graded copies ranging from $26.16 at grade 9 to $75.00 at grade 10. A grade 10 copy sells for around $75.00, about 33× the $2.27 raw price, so high-grade copies are worth grading.