Iono's Bellibolt ex #183 from Journey Together is a holo illustration_rare card that currently sells for about $36.43 ungraded, with graded copies ranging from $28.00 at grade 7 to $44.99 at grade 10. A grade 10 copy sells for around $44.99 vs $36.43 raw. That's a modest premium, so grading only pays off for near-perfect copies.