Ralts #153 from Paldean Fates is a holo shiny card that currently sells for about $8.17 ungraded, with graded copies ranging from $17.87 at grade 9 to $1.00 at grade 10. A grade 10 copy sells for around $1.00 vs $8.17 raw. That's a modest premium, so grading only pays off for near-perfect copies.