Ungraded vs PSA 10 M Blastoise EX #18: price difference
M Blastoise EX #18 value — Ungraded $17 vs PSA 10 $241. PSA 10 sells for 14.18× Ungraded (+1318%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 14.18× (+1318%) the Ungraded price — a $224 difference per card.
PSA 10 sells for 4.73× (+373%) the Grade 9 price — a $190 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On M Blastoise EX #18, the jump from Ungraded to PSA 10 is worth $224 (14.18×) — 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).