Ungraded vs PSA 10 George Brett #330 1979 Topps Baseball: price difference
George Brett #330 1979 Topps Baseball value — Ungraded $3 vs PSA 10 $9100. PSA 10 sells for 3,033.33× Ungraded (+303233%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 3,033.33× (+303233%) the Ungraded price — a $9,097 difference per card.
Grade 9 sells for 90.67× (+8967%) the Ungraded price — a $269 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On George Brett #330 1979 Topps Baseball, the jump from Ungraded to PSA 10 is worth $9,097 (3,033.33×) — 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).