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Dialga GX (Secret) SM - Forbidden Light Pokemon card
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Dialga GX (Secret)

SM - Forbidden Light · Pokemon · #138 · Secret Rare

Dialga GX (Secret) (#138) is a Secret Rare card from the SM - Forbidden Light set in Pokemon. Its current raw market value is $75.25, last updated June 11, 2026. A PSA 10 graded copy runs about $364.14 — roughly 4.8× the raw price. It's one of the most valuable cards in the set, ranking #3 of 148 priced cards.

Market Price

$75.25

Source: tcgplayer · Updated June 11, 2026

Graded Prices

Grade 7$30.80
Grade 8$41.50
Grade 9$94.97
Grade 9.5$104.00
PSA 10$364.14
BGS 10$473.00
CGC 10$291.00
SGC 10$218.00

Card Details

Game
Pokemon
Set
SM - Forbidden Light
Card Number
138
Rarity
Secret Rare
Language
English

Frequently asked questions

How much is Dialga GX (Secret) worth?

Dialga GX (Secret) from SM - Forbidden Light (Pokemon) has a current raw market price of $75.25, last updated June 11, 2026. A PSA 10 graded copy is worth about $364.14.

Is Dialga GX (Secret) worth grading?

A PSA 10 Dialga GX (Secret) is valued around $364.14 versus $75.25 raw — a premium of roughly 4.8×. Grading tends to pay off when that premium comfortably exceeds grading costs and the card is likely to earn a high grade.

Where can I buy or sell Dialga GX (Secret)?

You can view current Dialga GX (Secret) listings on TCGPlayer. VendBuddy tracks live Pokemon market prices so card show vendors can confidently buy and sell Dialga GX (Secret) and thousands of other cards.

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