Ungraded vs Grade 8.0 Adventure Comics #171 (1951): price difference
Adventure Comics #171 (1951) value — Ungraded $68 vs Grade 8.0 $2052. Grade 8.0 sells for 30.18× Ungraded (+2918%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 30.18× (+2918%) the Ungraded price — a $1,984 difference per comic.
Grade 8.0 sells for 6.84× (+584%) the Grade 6.0 price — a $1,752 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #171 (1951), the jump from Ungraded to Grade 8.0 is worth $1,984 (30.18×) — 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).