Ungraded vs PSA 10 Slowking [Reverse Holo] #21: price difference

Slowking [Reverse Holo] #21 value — Ungraded $2 vs PSA 10 $300. PSA 10 sells for 150× Ungraded (+14900%). Prices updated July 2026.

↘ Falling · -41%

GradeSold medianvs Ungraded

Ungraded$2—eBay ↗

Grade 9$3216× · +1500%eBay ↗

PSA 10$300150× · +14900%eBay ↗

Medians of real sold listings per grade, updated July 2026 — how we compute values.

Ungraded vs PSA 10

$2→$300

PSA 10 sells for 150× (+14900%) the Ungraded price — a $298 difference per card.

Ungraded vs Grade 9

$2→$32

Grade 9 sells for 16× (+1500%) the Ungraded price — a $30 difference per card.

Should you get this card graded?

Grading runs about $30 per card all-in. On Slowking [Reverse Holo] #21, the jump from Ungraded to PSA 10 is worth $298 (150×) — 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 →

See current eBay listings See sold Slowking [Reverse Holo] #21 listings ↗Full Slowking [Reverse Holo] #21 price guide →

Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).