Ungraded vs Grade 8.0 Invincible #21 (2005): price difference
Invincible #21 (2005) value — Ungraded $50 vs Grade 8.0 $60. Grade 8.0 sells for 1.2× Ungraded (+20%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 1.2× (+20%) the Ungraded price — a $10 difference per comic.
Grade 8.0 sells for 1.18× (+18%) the Grade 6.0 price — a $9 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Invincible #21 (2005), the jump from Ungraded to Grade 8.0 is worth $10 (1.2×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).