Ungraded vs PSA 10 Mewtwo GX #31: price difference
Mewtwo GX #31 value — Ungraded $8 vs PSA 10 $110. PSA 10 sells for 13.75× Ungraded (+1275%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 13.75× (+1275%) the Ungraded price — a $102 difference per card.
PSA 10 sells for 3.93× (+293%) the Grade 9 price — a $82 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mewtwo GX #31, the jump from Ungraded to PSA 10 is worth $102 (13.75×) — 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).