Ungraded vs PSA 10 Slowpoke & Psyduck GX #159: price difference
Slowpoke & Psyduck GX #159 value — Ungraded $87 vs PSA 10 $159. PSA 10 sells for 1.83× Ungraded (+83%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 1.83× (+83%) the Ungraded price — a $72 difference per card.
PSA 10 sells for 2.21× (+121%) the Grade 9 price — a $87 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Slowpoke & Psyduck GX #159, the jump from Ungraded to PSA 10 is worth $72 (1.83×) — 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).