Ragavan, Nimble Pilferer #315 from Modern Horizons 2 is a full art / borderless mythic card that currently sells for about $60.00 ungraded, with graded copies ranging from $29.00 at grade 7 to $99.99 at grade 10. A grade 10 copy sells for around $99.99 vs $60.00 raw. That's a modest premium, so grading only pays off for near-perfect copies.