Gyarados #6 from Base Set is a holo rare card that currently sells for about $22.98 ungraded, with graded copies ranging from $79.37 at grade 7 to $2,400 at grade 10. TCGrader's AI has graded 17 copies of Gyarados (Base Set), averaging 6.1 overall. A grade 10 copy sells for around $2,400, about 104× the $22.98 raw price, so high-grade copies are worth grading.