![Slugma [1st Edition] #18](/api/images/junkpal-products/cards/slugma-1st-edition-18-pokemon-japanese-split-earth-card/img0/cover.webp)
Ungraded vs PSA 10 Slugma [1st Edition] #18: price difference
Slugma [1st Edition] #18 value — Ungraded $4 vs PSA 10 $115. PSA 10 sells for 28.75× Ungraded (+2775%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 28.75× (+2775%) the Ungraded price — a $111 difference per card.
PSA 10 sells for 7.19× (+619%) the Grade 9 price — a $99 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Slugma [1st Edition] #18, the jump from Ungraded to PSA 10 is worth $111 (28.75×) — 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).