Mew #1 from Southern Islands is a common card that currently sells for about $333 ungraded, with graded copies ranging from $720 at grade 7 to $85,001 at grade 10. TCGrader's AI has graded 6 copies of Mew (Southern Islands), averaging 7 overall. A grade 10 copy sells for around $85,001, about 255× the $333 raw price, so high-grade copies are worth grading.