Ungraded vs PSA 10 Ken Boyer #557 1959 Topps Baseball: price difference
Ken Boyer #557 1959 Topps Baseball value — Ungraded $7 vs PSA 10 $1330. PSA 10 sells for 190× Ungraded (+18900%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 190× (+18900%) the Ungraded price — a $1,323 difference per card.
Grade 9 sells for 29.29× (+2829%) the Ungraded price — a $198 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Ken Boyer #557 1959 Topps Baseball, the jump from Ungraded to PSA 10 is worth $1,323 (190×) — 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).