Pokémon sets › Secret Wonders › Gastrodon West Sea [Reverse Holo]

Secret Wonders Gastrodon West Sea [Reverse Holo] Pokémon card

Gastrodon West Sea [Reverse Holo] #9

Secret Wonders · 2007 · Rare Holo

Ungraded · UK

£9.20

PSA 10 · UK

£143.61

Ungraded · US

$8.99

PSA 10 · US

$194.59

Medium confidence 46th most valuable of 265 priced cards in Secret Wonders

Solid guide price from market data — pre-2010 condition spread, liquid, well-sampled card.

Priced against the UK market and refreshed weekly — adjusted where UK collectors reliably pay above the US average. We have not yet seen enough recent UK activity for this card to read it directly.

A PSA 10 of this card sells for about 15.6× the ungraded price — £9.20 raw against £143.61 graded.

UK ungraded · 17 readings, May 2026 to Aug 2026 +20.4%

30 days-7.5% 90 days+41.3%

Peaked at £9.95 in July 2026; lowest £6.51 in May 2026. PSA 10 moved +5.7% over a comparable period.

UK price month by month

Month	UK ungraded
May 2026	£6.51
June 2026	£8.97
July 2026	£9.95
August 2026	£9.20

UK guide prices, with the US market alongside — updated 30 August 2026. Each market is priced from real market data in that market. Estimates for collection tracking — not an appraisal or a quote.

Check recent UK sold prices on eBay →

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