Nihilego #106 from Lost Thunder is a holo holo_rare card that currently sells for about $12.94 ungraded, with graded copies ranging from $8.09 at grade 9 to $10.85 at grade 10. A grade 10 copy sells for around $10.85 vs $12.94 raw. That's a modest premium, so grading only pays off for near-perfect copies.