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Dialga GX #138, Secret, Sun & Moon - Forbidden Light

  • Card number: #138/131
  • Rarity: Secret Rare
  • Finish: Holo

A PSA 10 Dialga GX #138 Secret from Sun & Moon - Forbidden Light has a TCGBerg fair value of $1,056 as of Nov 15, 2026. TCGBerg has recorded 37 PSA 10 sales of this card, the latest on Nov 3, 2026. PSA has graded 201 copies at PSA 10.

TCGBerg fair valuePSA 10
As of Nov 15, 2026
$1,056up 0.0%30-day change

TCGBerg Algorithm (estimated from recorded sales).

Fair value3 months
Last sale$1,074Nov 3, 20261.6% above fair
5-sale avg$1,314Oct 11Nov 3
Population · PSA 10
201
Market cap
$212.3K
Volatility
2.0%
YTD
↑ 191.6%
Sales evidence
Strong

TCGBerg fair value · PSA 10

$1,056

30D0.0%YTD191.6%
Sales evidenceStrong
Market cap
$212.3K
fair value x population
Population
201
graded copies
Last sale
$1,074
+1.6% vs fair
5-sale avg
$1,314
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 10.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 10 sale, $1,074 on Nov 3, 2026, is in line with the $1,056 fair value (1.6% above). The value weighs 30 PSA 10 sales from the past year, not the latest one alone. Its confidence band runs from $1,003 to $1,110. A PSA 10 ($1,056) is worth 8.8 times a PSA 9 ($120). Over the past 30 days the PSA 10 value has risen 0.0%.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

  • Raw NM$78Ungraded · TCGBerg fair value
  • Raw LP$55Ungraded · TCGBerg fair value
  • Raw MP$38Ungraded · market price
  • Raw HP$35Ungraded · market price
  • Raw Damaged$29Ungraded · TCGBerg fair value
hatched = market price, not a TCGBerg fair value

Behind the scenes

What goes into this price, and how much we know.

Recent sales

20 tracked

Each sale against the grade's fair value on the day it sold.

  • $83
    Nov 8, 2026 · via eBay
    PSA9below fair value by 45.4%
  • $1,074
    Nov 3, 2026 · via eBay
    PSA10above fair value by 2.0%
  • $830
    Nov 1, 2026 · via eBay
    PSA10below fair value by 19.7%
  • $1,339
    Oct 15, 2026 · via Alt
    PSA10above fair value by 27.8%
  • $220
    Oct 14, 2026 · via eBay
    PSA9above fair value by 64.2%

15 more sales with Pro

Up to 20 recent sales, each with its venue and its gap to fair value.

Includes a sale 35.3% below fair value

All grades matrix

Every grade we track for this printing.

  • CGC Pristine 10$842
    1d -7d -30d -
    Pop
    -
    Mcap
    -
    Evidence
    Sparse
    Last
    -
  • PSA10$1,056
    1d 1.2%7d 0.2%30d 0.0%
    Pop
    201
    Mcap
    $212.3K
    Evidence
    Strong
    Last
    $1,074
  • PSA9$120
    1d 0.4%7d 21.2%30d 9.6%
    Pop
    205
    Mcap
    $24.6K
    Evidence
    Strong
    Last
    $83
Listings
CGC Pristine 10$842-----Sparse-
PSA10$1,056201$212.3Kup 0.2%0.0%up 43.6%Strong$1,0742w ago
PSA9$120205$24.6Kdown 21.2%down 9.6%up 49.5%Strong$831w ago
PSA8$8363$5.2K0.0%up 7.0%up 46.1%Limited$5710mo ago
PSA7$6621$1.4Kup 0.2%down 2.2%up 16.7%Moderate$652mo ago
PSA6$3011$3310.0%down 16.7%up 1.3%Sparse-
PSA4$6.504-0.0%0.0%0.0%Sparse-
Raw$78--0.0%0.0%-Strong$751mo ago

Graded population report

507 graded copies of Dialga GX Secret across 7 grades.

PSA 10
201 · 40%
PSA 9
205 · 40%
PSA 8
63 · 12%
PSA 7
21 · 4.1%
PSA 6
11 · 2.2%
PSA 4
4 · 0.8%
PSA 3
2 · 0.4%

PSA 10 makes up 40% of graded copies: 201 of 507. PSA 9 is the most common grade (40%).

Analysis

Dialga GX - Secret at PSA 10 carries a TCGBerg fair value of $1,056 as of 2026-11-14. We track a TCGBerg fair value across 7 grades from Sun & Moon - Forbidden Light, from PSA 4 up to PSA 10. A graded population of 201 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on strong sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 0.0%.

PSA 10 - frequently asked

How much is a PSA 10 Dialga GX - Secret from Sun & Moon - Forbidden Light worth?
$1,056 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 10 Dialga GX - Secret from Sun & Moon - Forbidden Light. It rests on strong sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 10 Dialga GX - Secret from Sun & Moon - Forbidden Light?
201 copies have been graded at PSA 10, the recorded graded population, not the number of copies printed.
How has the PSA 10 Dialga GX - Secret from Sun & Moon - Forbidden Light price moved recently?
Its TCGBerg fair value has risen 0.0% over the past 30 days.
What did a PSA 10 Dialga GX - Secret from Sun & Moon - Forbidden Light last sell for?
The most recent recorded sale was $1,074 on 2026-11-03. This recorded sale is separate from the model-derived fair value.