Iono #269 from Paldea Evolved is a illustration_rare card that currently sells for about $45.00 ungraded, with graded copies ranging from $43.53 at grade 7 to $45.00 at grade 10. A grade 10 copy sells for around $45.00 vs $45.00 raw. That's a modest premium, so grading only pays off for near-perfect copies.