Ungraded vs Grade 8.0 Thundercats #18 (1987): price difference
Thundercats #18 (1987) value — Ungraded $18 vs Grade 8.0 $52. Grade 8.0 sells for 2.89× Ungraded (+189%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 8.0 sells for 2.89× (+189%) the Ungraded price — a $34 difference per comic.
Grade 6.0 sells for 2× (+100%) the Ungraded price — a $18 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Thundercats #18 (1987), the jump from Ungraded to Grade 8.0 is worth $34 (2.89×) — 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).