Ungraded vs PSA 10 Gene Conley #28 1957 Topps Baseball: price difference
Gene Conley #28 1957 Topps Baseball value — Ungraded $4 vs PSA 10 $2489. PSA 10 sells for 622.25× Ungraded (+62125%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 622.25× (+62125%) the Ungraded price — a $2,485 difference per card.
Grade 9 sells for 518.5× (+51750%) the Ungraded price — a $2,070 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Gene Conley #28 1957 Topps Baseball, the jump from Ungraded to PSA 10 is worth $2,485 (622.25×) — 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).