Ungraded vs PSA 10 Sonny Siebert #597 1970 Topps Baseball: price difference
Sonny Siebert #597 1970 Topps Baseball value — Ungraded $3 vs PSA 10 $226. PSA 10 sells for 75.33× Ungraded (+7433%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 75.33× (+7433%) the Ungraded price — a $223 difference per card.
PSA 10 sells for 9.83× (+883%) the Grade 9 price — a $203 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Sonny Siebert #597 1970 Topps Baseball, the jump from Ungraded to PSA 10 is worth $223 (75.33×) — 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).