![Spider-Man [Diamond Preview] #29 1990 Universe Marvel](/api/images/junkpal-products/sports/spider-man-diamond-preview-29-marvel-1990-universe-sport/cover.webp)
Ungraded vs PSA 10 Spider-Man [Diamond Preview] #29 1990 Universe Marvel: price difference
Spider-Man [Diamond Preview] #29 1990 Universe Marvel value — Ungraded $13 vs PSA 10 $1950. PSA 10 sells for 150× Ungraded (+14900%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 150× (+14900%) the Ungraded price — a $1,937 difference per card.
Grade 9 sells for 19.23× (+1823%) the Ungraded price — a $237 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Spider-Man [Diamond Preview] #29 1990 Universe Marvel, the jump from Ungraded to PSA 10 is worth $1,937 (150×) — 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).