Ungraded vs PSA 10 Cal Koonce #31 1963 Topps Baseball: price difference
Cal Koonce #31 1963 Topps Baseball value — Ungraded $2 vs PSA 10 $378. PSA 10 sells for 189× Ungraded (+18800%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 189× (+18800%) the Ungraded price — a $376 difference per card.
Grade 9 sells for 52.5× (+5150%) the Ungraded price — a $103 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Cal Koonce #31 1963 Topps Baseball, the jump from Ungraded to PSA 10 is worth $376 (189×) — 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).