Ungraded vs PSA 10 George Brett #580 1977 Topps Baseball: price difference
George Brett #580 1977 Topps Baseball value — Ungraded $5 vs PSA 10 $6296. PSA 10 sells for 1,259.2× Ungraded (+125820%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 1,259.2× (+125820%) the Ungraded price — a $6,291 difference per card.
Grade 9 sells for 80.4× (+7940%) the Ungraded price — a $397 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On George Brett #580 1977 Topps Baseball, the jump from Ungraded to PSA 10 is worth $6,291 (1,259.2×) — 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).