Ungraded vs PSA 10 Harmon Killebrew #550 1971 Topps Baseball: price difference
Harmon Killebrew #550 1971 Topps Baseball value — Ungraded $15 vs PSA 10 $2500. PSA 10 sells for 166.67× Ungraded (+16567%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 166.67× (+16567%) the Ungraded price — a $2,485 difference per card.
Grade 9 sells for 138.87× (+13787%) the Ungraded price — a $2,068 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Harmon Killebrew #550 1971 Topps Baseball, the jump from Ungraded to PSA 10 is worth $2,485 (166.67×) — 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).