Ungraded vs PSA 10 Underground Sea #578: price difference
Underground Sea #578 value — Ungraded $437 vs PSA 10 $565. PSA 10 sells for 1.29× Ungraded (+29%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 1.29× (+29%) the Ungraded price — a $128 difference per card.
Grade 9 sells for 1.26× (+26%) the Ungraded price — a $113 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Underground Sea #578, the jump from Ungraded to PSA 10 is worth $128 (1.29×) — 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).