Grade 9 vs PSA 10 John Kruk #596 1988 Topps Baseball: price difference
John Kruk #596 1988 Topps Baseball value — Grade 9 $13 vs PSA 10 $85. PSA 10 sells for 6.54× Grade 9 (+554%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
Grade 9 vs PSA 10
$13→$85
PSA 10 sells for 6.54× (+554%) the Grade 9 price — a $72 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On John Kruk #596 1988 Topps Baseball, the jump from Grade 9 to PSA 10 is worth $72 (6.54×) — 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).