Abhorrent Oculus #42 from Duskmourn: House of Horror is a mythic card that currently sells for about $16.61 ungraded, with graded copies ranging from $10.00 at grade 9 to $22.00 at grade 10. A grade 10 copy sells for around $22.00 vs $16.61 raw. That's a modest premium, so grading only pays off for near-perfect copies.