Mew #GG10 from Crown Zenith Galarian Gallery is a reverse holo holo_rare card that currently sells for about $64.00 ungraded, with graded copies ranging from $56.69 at grade 7 to $616 at grade 10. A grade 10 copy sells for around $616, about 9.6× the $64.00 raw price, so high-grade copies are worth grading.