Sky Seal Stone #143 from Crown Zenith is a reverse holo holo_rare card that currently sells for about $0.49 ungraded, with graded copies ranging from $9.99 at grade 9 to $20.00 at grade 10. A grade 10 copy sells for around $20.00, about 41× the $0.49 raw price, so high-grade copies are worth grading.