Ungraded vs PSA 10 Tropical Tidal Wave [Staff] #HGSS18: price difference

Tropical Tidal Wave [Staff] #HGSS18 value — Ungraded $650 vs PSA 10 $1494. PSA 10 sells for 2.3× Ungraded (+130%). Prices updated July 2026.

→ Steady

GradeSold medianvs Ungraded

Ungraded$650—eBay ↗

Grade 9$14802.28× · +128%eBay ↗

PSA 10$14942.3× · +130%eBay ↗

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

Ungraded vs PSA 10

$650→$1494

PSA 10 sells for 2.3× (+130%) the Ungraded price — a $844 difference per card.

Ungraded vs Grade 9

$650→$1480

Grade 9 sells for 2.28× (+128%) the Ungraded price — a $830 difference per card.

Should you get this card graded?

Grading runs about $30 per card all-in. On Tropical Tidal Wave [Staff] #HGSS18, the jump from Ungraded to PSA 10 is worth $844 (2.3×) — 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 Tropical Tidal Wave [Staff] #HGSS18 listings ↗Full Tropical Tidal Wave [Staff] #HGSS18 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).