Vaporeon ex #149 from Prismatic Evolutions is a holo illustration_rare card that currently sells for about $275 ungraded, with graded copies ranging from $205 at grade 7 to $1,025 at grade 10. TCGrader's AI has graded 20 copies of Vaporeon ex (Prismatic Evolutions), averaging 8.9 overall. 65% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $1,025, about 3.7× the $275 raw price, so high-grade copies are worth grading.