Mega Diancie ex #041 from Phantasmal Flames is a holo rare card that currently sells for about $1.75 ungraded, with graded copies ranging from $11.50 at grade 9 to $38.72 at grade 10. A grade 10 copy sells for around $38.72, about 22× the $1.75 raw price, so high-grade copies are worth grading.