Squirtle #63 from Base Set is a common card that currently sells for about $3.66 ungraded, with graded copies ranging from $27.89 at grade 7 to $509 at grade 10. TCGrader's AI has graded 8 copies of Squirtle (Base Set), averaging 7.2 overall. A grade 10 copy sells for around $509, about 139× the $3.66 raw price, so high-grade copies are worth grading.