![Dark Blastoise [1st Edition] #20](/api/images/junkpal-products/cards/dark-blastoise-1st-edition-20-pokemon-team-rocket-card/img0/cover.webp)
Ungraded vs PSA 10 Dark Blastoise [1st Edition] #20: price difference
Dark Blastoise [1st Edition] #20 value — Ungraded $48 vs PSA 10 $899. PSA 10 sells for 18.73× Ungraded (+1773%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 18.73× (+1773%) the Ungraded price — a $851 difference per card.
PSA 10 sells for 5.88× (+488%) the Grade 9 price — a $746 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Dark Blastoise [1st Edition] #20, the jump from Ungraded to PSA 10 is worth $851 (18.73×) — 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).