![Gene Conley [Gray Back] #17 1956 Topps Baseball](/api/images/junkpal-products/sports/gene-conley-gray-back-17-baseball-cards-1956-topps-sport/cover.webp)
Ungraded vs PSA 10 Gene Conley [Gray Back] #17 1956 Topps Baseball: price difference
Gene Conley [Gray Back] #17 1956 Topps Baseball value — Ungraded $6 vs PSA 10 $3367. PSA 10 sells for 561.17× Ungraded (+56017%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 561.17× (+56017%) the Ungraded price — a $3,361 difference per card.
Grade 9 sells for 467.67× (+46667%) the Ungraded price — a $2,800 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Gene Conley [Gray Back] #17 1956 Topps Baseball, the jump from Ungraded to PSA 10 is worth $3,361 (561.17×) — 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).