What is the estimated value of the ungraded Tropical Tidal Wave #HGSS18?

The ungraded version of Tropical Tidal Wave #HGSS18 is valued at $728.

How much more is a PSA 10 version worth compared to ungraded?

A PSA 10 copy is valued at $1663, which is significantly higher than the $728 ungraded price.

Is this Pokémon Promo a good investment?

Yes, the price jump from ungraded ($728) to PSA 10 ($1663) suggests strong resale potential for this Pokémon Promo.

Tropical Tidal Wave #HGSS18 — Pokémon Promo Card Value

Pokémon Promo

What the Tropical Tidal Wave #HGSS18 card from Pokémon Promo is worth — ungraded and graded (PSA 10).

Tropical Tidal Wave #HGSS18 value — Ungraded $728 · Grade 9 $672 · PSA 10 $1,663. Prices updated July 2026.

Set · Pokémon PromoGame · Pokémon

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Value by grade

$728

Ungraded

+-8%

$672

Grade 9

2.3×

$1,663

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 2.3× raw.

Complete-in-box price history

Monthly CIB value, based on sold comps.

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Which version do you have?

For the lowest entry point, purchase the Standard version at $728. The premium versions offer increased scarcity and prestige; the Finalist ($6349) and Top Sixteen ($1581) represent significant collector milestones. Casual collectors should stick to the Standard or Top Thirty-Two ($750), while serious investors should target the higher-tier editions for maximum return.

VersionUsedNewBuy

FinalistTropical Tidal Wave [Finalist] #HGSS18 — Pokémon Promo Card Value$6,349—eBay ↗

Top SixteenTropical Tidal Wave [Top Sixteen] #HGSS18 — Pokémon Promo Card Value$1,581—eBay ↗

Top Thirty-TwoTropical Tidal Wave [Top Thirty-Two] #HGSS18 — Pokémon Promo Card Value$750—eBay ↗

Standard— this pageTropical Tidal Wave #HGSS18 — Pokémon Promo Card Value$727.5$1,663eBay ↗

StaffTropical Tidal Wave [Staff] #HGSS18 — Pokémon Promo Card Value$649.99$1,494eBay ↗

JunkPal AI· resale insightanalyzing sold comps…

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Price data verified against · 1

PriceCharting — Tropical Tidal Wave #HGSS18 (Pokémon Promo)$727.5

Item details

Brand: Pokémon
Set: Pokémon Promo
Game: Pokémon
Card number: #HGSS18
Release date: February 11, 2010

Tropical Tidal Wave #HGSS18 (Pokémon Promo) card value

An ungraded Tropical Tidal Wave #HGSS18 from Pokémon Promo averages around $728. A Grade 9 copy runs about $672, and a PSA 10 gem-mint commands $1663.

What drives the price

Centering, corners, edges, and surface decide a card's grade — and the grade decides the price. The jump from raw to PSA 10 can be 5–20×, so condition is everything. Holos, first editions, and shadowless prints carry the biggest premiums.

Price guide

Sold values by grade vs. what sellers ask today

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Condition	Value	Based on
Ungraded	$728	eBay sold comps
Grade 9	$672	eBay sold comps
PSA 10	$1,663	eBay sold comps

Frequently asked questions

What is the estimated value of the ungraded Tropical Tidal Wave #HGSS18?: The ungraded version of Tropical Tidal Wave #HGSS18 is valued at $728.
How much more is a PSA 10 version worth compared to ungraded?: A PSA 10 copy is valued at $1663, which is significantly higher than the $728 ungraded price.
Is this Pokémon Promo a good investment?: Yes, the price jump from ungraded ($728) to PSA 10 ($1663) suggests strong resale potential for this Pokémon Promo.