Ungraded vs PSA 10 The Thing [Diamond Preview] #6 1990 Universe Marvel: price difference
The Thing [Diamond Preview] #6 1990 Universe Marvel value — Ungraded $5 vs PSA 10 $77. PSA 10 sells for 15.4× Ungraded (+1440%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 15.4× (+1440%) the Ungraded price — a $72 difference per card.
Grade 9 sells for 9.2× (+820%) the Ungraded price — a $41 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On The Thing [Diamond Preview] #6 1990 Universe Marvel, the jump from Ungraded to PSA 10 is worth $72 (15.4×) — 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).