Gyarados #6 from Base Set is a holo rare card that currently sells for about $24.71 ungraded, with graded copies ranging from $73.19 at grade 7 to $2,400 at grade 10. TCGrader's AI has graded 14 copies of Gyarados (Base Set), averaging 6.2 overall. A grade 10 copy sells for around $2,400, about 97× the $24.71 raw price, so high-grade copies are worth grading.