Ungraded vs Grade 8.0 Sub-Mariner #33 (1971): price difference
Sub-Mariner #33 (1971) value — Ungraded $16 vs Grade 8.0 $36. Grade 8.0 sells for 2.25× Ungraded (+125%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 2.25× (+125%) the Ungraded price — a $20 difference per comic.
Grade 6.0 sells for 1.56× (+56%) the Ungraded price — a $9 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Sub-Mariner #33 (1971), the jump from Ungraded to Grade 8.0 is worth $20 (2.25×) — 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).