Mewtwo-GX #76 from Shining Legends is a reverse holo rare card that currently sells for about $53.19 ungraded, with graded copies ranging from $39.00 at grade 7 to $69.00 at grade 10. A grade 10 copy sells for around $69.00 vs $53.19 raw. That's a modest premium, so grading only pays off for near-perfect copies.