Ungraded vs PSA 10 Mickey Mantle #321 2021 Topps Project 70 Baseball: price difference
Mickey Mantle #321 2021 Topps Project 70 Baseball value — Ungraded $19 vs PSA 10 $100. PSA 10 sells for 5.26× Ungraded (+426%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 5.26× (+426%) the Ungraded price — a $81 difference per card.
PSA 10 sells for 3.85× (+285%) the Grade 9 price — a $74 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mickey Mantle #321 2021 Topps Project 70 Baseball, the jump from Ungraded to PSA 10 is worth $81 (5.26×) — 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).