Ungraded vs Grade 8.0 Amazing Spider-Man #345 (1991): price difference
Amazing Spider-Man #345 (1991) value — Ungraded $20 vs Grade 8.0 $31. Grade 8.0 sells for 1.55× Ungraded (+55%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 1.55× (+55%) the Ungraded price — a $11 difference per comic.
Grade 8.0 sells for 1.63× (+63%) the Grade 6.0 price — a $12 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Amazing Spider-Man #345 (1991), the jump from Ungraded to Grade 8.0 is worth $11 (1.55×) — 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).