Tapu Koko ex #247 from Paradox Rift is a illustration_rare card that currently sells for about $18.36 ungraded, with graded copies ranging from $21.00 at grade 7 to $141 at grade 10. A grade 10 copy sells for around $141, about 7.7× the $18.36 raw price, so high-grade copies are worth grading.