Ungraded vs PSA 10 Mariners Team #499 1978 Topps Baseball: price difference
Mariners Team #499 1978 Topps Baseball value — Ungraded $2 vs PSA 10 $328. PSA 10 sells for 164× Ungraded (+16300%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 164× (+16300%) the Ungraded price — a $326 difference per card.
Grade 9 sells for 25× (+2400%) the Ungraded price — a $48 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mariners Team #499 1978 Topps Baseball, the jump from Ungraded to PSA 10 is worth $326 (164×) — 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).