Mewtwo GX

GX Starter Decks · #42/131 · None · 2018JPN

$7.47

Market price ▲ 0.0% (30d)

Prices as of Aug 14, 2026

192graded pop

41%gem rate

8.5×PSA 10 vs raw

0%off ATH $6.61 · Jul 2026

+$2.94EV to grade — marginal

Market data

Price history

Holofoil▲ 3.3% 7d

Low $2.00Mid $2.00High $2.00

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Live listings

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Graded market

Graded values

PSA 10 report →updated 2026-08-13

Grade 6 est.$6.28

Grade 5 est.$5.29

Grade 4 est.$4.36

Grade 3 est.$3.64

Grade 2 est.$2.97

Grade 1 est.$2.51

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$63.78

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

Graded population census · updated 2026-07-08

CGC138 graded · 49 gem 10

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PSA54 graded · 29 gem 10

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Population data from PriceCharting, updated monthly.

How much is Mewtwo GX #42/131 worth?

As of August 14, 2026, Mewtwo GX #42/131 from GX Starter Decks sells for around $7.47 in raw, ungraded condition.

Grading changes the math on this one: a PSA 10 is valued around $63.78, roughly 8.5x the raw price, while a PSA 9 sits near $16.00. 138 copies have been graded to date, and 36% 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 GX Starter Decks?Full master set guide — every card, chase list, and completion cost→