Cavern of Souls #320 from Double Masters 2022 is a mythic card that currently sells for about $58.25 ungraded, with graded copies ranging from $125 at grade 9 to $90.00 at grade 10. A grade 10 copy sells for around $90.00 vs $58.25 raw. That's a modest premium, so grading only pays off for near-perfect copies.