Ungraded vs Grade 8.0 The X-Men #51 (1968): price difference
The X-Men #51 (1968) value — Ungraded $43 vs Grade 8.0 $177. Grade 8.0 sells for 4.12× Ungraded (+312%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 4.12× (+312%) the Ungraded price — a $134 difference per comic.
Grade 6.0 sells for 2.28× (+128%) the Ungraded price — a $55 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On The X-Men #51 (1968), the jump from Ungraded to Grade 8.0 is worth $134 (4.12×) — 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).