Forbidden LightSun & Moon · 2018

Dialga GX Secret

#138HolofoilUpdated Oct 26, 2026

TCGPlayer market

$77.20

Cardmarket: €77.90
PSA 10: $1,088.40
PSA 9: $150.17
PSA population: 501

Finish

Market prices

Ungraded prices from each marketplace we track, with sales activity where available.

SourcePriceSalesLast salePer weekSignal

TCGPlayer Market USD

$77.20

TCGPlayer Market

USD

$77.20

—

eBay Average USD

$72.53

8 sales2.3/weeklast sale Oct 9, 2026low confidence

eBay Average

USD

$72.53

8

Oct 9, 2026

2.3

low confidence

eBay Sold USD

$56.95

8 sales

eBay Sold

USD

$56.95

8

—

Cardmarket EUR

€77.90

Cardmarket

EUR

€77.90

—

Graded prices

Average sold price by grading company and grade.

GradeAverage sold price

Grade 10: $1,088.4022 sold▲
Grade 9: $150.1712 sold▲
Grade 8: $57.491 sold
Grade 7: $50.983 sold▼

Grader	10	9	8	7
PSA	$1,08822 sold▲	$15012 sold▲	$57.491 sold	$50.983 sold▼
CGC	–	$60.32	–	–
TAG	$3001 sold	–	–	–

Population report

How many copies each grading company has graded, and at which grade.

PSA graded

501

39.7%

Gem rate

0

2

4

0

11

21

61

201

199

12345678910

Qualifiers 2Match confidence: high

Price by condition

Ungraded market price for each printing, from Near Mint down to Damaged.

Holofoil

NM

Near Mint

$76.74

LP

Lightly Played

$57.36

MP

Moderately Played

$36.99

HP

Heavily Played

$32.28

DM

Damaged

$26.74

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About Dialga GX Secret

Dialga GX Secret is a Pokémon card (#138) from Forbidden Light, part of the Sun & Moon series, released in 2018.

An ungraded copy currently sells for about $77.20. A PSA 10 (Gem Mint) averages $1,088.40 — about 14.1× the raw price.

PSA has graded 501 copies, 199 of them at PSA 10 (a 39.7% gem rate). Fewer tens usually means a larger premium for a top-graded copy.

PokiFrame tracks Dialga GX Secret across TCGPlayer, Cardmarket and eBay sales so you can check its value before you buy, sell or trade.

Browse every Forbidden Light card →

Dialga GX Secret — common questions

How much is Dialga GX Secret worth?: Dialga GX Secret from Forbidden Light has a market price of $77.20 for an ungraded copy, based on current TCGPlayer and eBay sales data. Condition, print variant and grading all move that number.
What is a PSA 10 Dialga GX Secret worth?: Recent PSA 10 (Gem Mint) sales of Dialga GX Secret averaged $1,088.40, about 14.1× the ungraded price. A PSA 9 averaged $150.17.
How many PSA 10 Dialga GX Secret are there?: PSA has graded 501 copies of Dialga GX Secret, and 199 of them received a PSA 10 — a gem rate of 39.7%.

$0.34

Low$1.00