Pokémon sets › SM Black Star Promos › Mewtwo & Mew GX
Mewtwo & Mew GX #SM191
Medium confidence 1st most valuable of 206 priced cards in SM Black Star Promos — top 1%
Solid guide price from market data — 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 11.3× the ungraded price — £227.82 raw against £2564.55 graded.
Peaked at £298.84 in July 2026; lowest £227.82 in August 2026. PSA 10 moved +114.3% over a comparable period.
UK price month by month
| Month | UK ungraded |
|---|---|
| June 2026 | £254.44 |
| July 2026 | £298.84 |
| August 2026 | £227.82 |
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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