Ungraded vs Grade 8.0 Superman #313 (1977): price difference
Superman #313 (1977) value — Ungraded $3 vs Grade 8.0 $47. Grade 8.0 sells for 15.67× Ungraded (+1467%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 15.67× (+1467%) the Ungraded price — a $44 difference per comic.
Grade 8.0 sells for 4.27× (+327%) the Grade 6.0 price — a $36 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superman #313 (1977), the jump from Ungraded to Grade 8.0 is worth $44 (15.67×) — 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).