Exploration #351 from Double Masters is a full art foil / borderless rare card that currently sells for about $32.71 ungraded, with graded copies ranging from $17.00 at grade 9 to $29.00 at grade 10. A grade 10 copy sells for around $29.00 vs $32.71 raw. That's a modest premium, so grading only pays off for near-perfect copies.