![Don Mattingly [No Copyright] #191 1990 Upper Deck Baseball](/api/images/junkpal-products/sports/don-mattingly-no-copyright-191-baseball-cards-1990-upper-deck-sport/cover.webp)
Ungraded vs PSA 10 Don Mattingly [No Copyright] #191 1990 Upper Deck Baseball: price difference
Don Mattingly [No Copyright] #191 1990 Upper Deck Baseball value — Ungraded $6 vs PSA 10 $148. PSA 10 sells for 24.67× Ungraded (+2367%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 24.67× (+2367%) the Ungraded price — a $142 difference per card.
PSA 10 sells for 12.33× (+1133%) the Grade 9 price — a $136 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Don Mattingly [No Copyright] #191 1990 Upper Deck Baseball, the jump from Ungraded to PSA 10 is worth $142 (24.67×) — 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).