Mewtwo & Mew GX

SM Promos · #SM191/131 · Promo · 2016

$357.94

Market price ▲ 6.4% (30d)

Prices as of Aug 14, 2026

18,017graded pop

51%gem rate

7.0×PSA 10 vs raw

-1%off ATH $328.35 · Jul 2026

+$1,099.22EV to grade — worth it

Market data

Price history

Holofoil▲ 1.5% 7d

Low $273.00Mid $399.99

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Live listings

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Graded market

Graded values

PSA 10 report →updated 2026-08-14

Grade 6 est.$284.54

Grade 5 est.$239.62

Grade 4 est.$197.68

Grade 3 est.$164.74

Grade 2 est.$134.78

Grade 1 est.$113.82

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$2,499.99

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-07

PSA18,017 graded · 9,222 gem 10

12345678910

Population data from PriceCharting, updated monthly.

How much is Mewtwo & Mew GX #SM191/131 worth?

Right now (August 14, 2026) the going rate for an ungraded Mewtwo & Mew GX #SM191/131 from SM Promos is about $357.94.

Grading changes the math on this one: a PSA 10 is valued around $2,499.99, roughly 7.0x the raw price, while a PSA 9 sits near $410.00. 18,017 copies have been graded to date, and 51% of them came back a 10 — worth knowing before you pay grading fees.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.

Collecting SM Promos?Full master set guide — every card, chase list, and completion cost→