Greninja & Zoroark-GX #107 from Unbroken Bonds is a holo holo_rare card that currently sells for about $31.00 ungraded, with graded copies ranging from $10.50 at grade 7 to $21.34 at grade 10. A grade 10 copy sells for around $21.34 vs $31.00 raw. That's a modest premium, so grading only pays off for near-perfect copies.