Gouging Fire ex #204 from Temporal Forces is a illustration_rare card that currently sells for about $48.11 ungraded, with graded copies ranging from $48.00 at grade 9 to $88.20 at grade 10. A grade 10 copy sells for around $88.20 vs $48.11 raw. That's a modest premium, so grading only pays off for near-perfect copies.