Ungraded vs Grade 8.0 Robin #4 (1991): price difference
Robin #4 (1991) value — Ungraded $2 vs Grade 8.0 $35. Grade 8.0 sells for 17.5× Ungraded (+1650%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 17.5× (+1650%) the Ungraded price — a $33 difference per comic.
Grade 8.0 sells for 4.38× (+338%) the Grade 6.0 price — a $27 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Robin #4 (1991), the jump from Ungraded to Grade 8.0 is worth $33 (17.5×) — if your copy grades at the top, that premium can cover the fee. 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).