Pokémon sets › Prismatic Evolutions › Seaking [Master-Ball]

Prismatic Evolutions Seaking [Master-Ball] Pokémon card

Seaking [Master-Ball] #21

Prismatic Evolutions · 2025 · Uncommon

Ungraded · US

$3.10

PSA 10 · US

$110.50

Ungraded · UK

£2.40

PSA 10 · UK

£81.55

Medium confidence 88th most valuable of 455 priced cards in Prismatic Evolutions

Solid guide price from market data — lower-demand card.

Built from United States market data — recent sales of this card in that market, refreshed weekly.

A PSA 10 of this card sells for about 35.6× the ungraded price — $3.10 raw against $110.50 graded.

We began recording US prices as their own series in August 2026, so there are not yet enough readings to chart a US trend for this card. It will appear here as they accumulate.

US guide prices, with the UK 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 US sold prices on eBay →

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