![Shellder [Green Back] #90](/api/images/junkpal-products/cards/shellder-green-back-90-pokemon-japanese-topsun-card/img0/cover.webp)
Ungraded vs PSA 10 Shellder [Green Back] #90: price difference
Shellder [Green Back] #90 value — Ungraded $6 vs PSA 10 $296. PSA 10 sells for 49.33× Ungraded (+4833%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 49.33× (+4833%) the Ungraded price — a $290 difference per card.
Grade 9 sells for 41.17× (+4017%) the Ungraded price — a $241 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Shellder [Green Back] #90, the jump from Ungraded to PSA 10 is worth $290 (49.33×) — 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).