Sky Seal Stone #143 from Crown Zenith is a reverse holo holo_rare card that currently sells for about $1.37 ungraded, with graded copies ranging from $12.63 at grade 9 to $35.21 at grade 10. A grade 10 copy sells for around $35.21, about 26× the $1.37 raw price, so high-grade copies are worth grading.