Home / SM - Forbidden Light / Dialga GX (Secret)

Dialga GX (Secret)

#138/131
Dialga GX (Secret) 138/131 from SM - Forbidden Light
Sold prices oneBay
Number
138/131
Released
May 4, 2018
Sold price movement
Where the price has been
12 months ago
$54.65£41.13€48.13
Today
$70£52.69€61.65
Change
+$15.35+£11.55+€13.52 (+28.1%)
Ungraded sold price, the raw line on the chart below · 183 sales in the last year
PSA gradedCGC and BGS graded
Raw market value
$75.89.
NM raw · TCGplayer market
Market activity
7 day +0.9% · 30 day +4.4%
11 ungraded copies sold in 90 days, median $55
42 on record, $7 to $300

Add to collection

Dialga GX (Secret) 138/131 from SM - Forbidden Light: price by grade, PSA population and sales in the last 90 days
Price typePop sharePopulationPopSold 90dMedianPrice
Raw–11$55£41.40€48.44$70£52.69€61.65
PSA 31–––
PSA 43–––
PSA 68–––
PSA 7172–$32£24.08€28.18
PSA 855––$39.99£30.10€35.22
PSA 91705$77£57.95€67.81$80£60.21€70.45
CGC/BGS 9.5modelled–––$88£66.23€77.50
PSA 101804–$737.50£555.08€649.49
About these prices

41.5% of copies sent to PSA come back a 10. Sold and median are 90 days of PSA sales. The 9.5 is a CGC and BGS grade, so it carries no PSA population.

Priced from 381 completed sales, updated Sep 30, 2026.

Price history

$70Raw · monthly median sold price
$18$32$56OCT '21JUN '23JAN '25OCT '26
Select grades to compare.

Recent sales

381 completed listings on eBay, Fanatics Collect, Alt
Grade
Sold as
Where
Sort
SoldGradeListingPrice
Sep 28, 2026PSA7eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 7 #138$65£48.92€57.24
Sep 25, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$800£602.12€704.54
Sep 25, 2026PSA9eBay2018 POKEMON SM-FORBIDDEN LIGHT DIALGA GX SECRET RARE 138/131 HOLO PSA 9 138/131$77£57.95€67.81
Sep 15, 2026PSA10eBayPokemon Dialga GX Forbidden Light Secret Full Art #138 PSA 10 Gem Mint #138$750£564.48€660.50
Sep 13, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$70£52.69€61.65
Sep 12, 2026PSA10eBay2018 Pokemon Sun & Moon FA/Dialga GX #138 PSA 10 GEM MINT #138$725£545.67€638.49
Sep 9, 2026RaweBayThe Pokémon Company Dialga GX 138/131 SM Forbidden Light Full Art Holo ENG 2018 138/131$70£52.69€61.65
Sep 4, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$72.70£54.72€64.02
Sep 2, 2026CGC10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$700£526.85€616.47
Sep 1, 2026PSA10eBay2018 Pokemon Sun & Moon FA/Dialga GX #138 PSA 10 GEM MINT #138$725£545.67€638.49
Sep 1, 2026PSA10eBayCert 144495115Best offer$725£545.67€638.49
Aug 28, 2026RaweBayDialga GX Holo 138/131 Rainbow Rare Forbidden Light Pokemon NM 138/131$89.99£67.73€79.25
Show 288 more, the newest 300 of 381
Aug 27, 2026RaweBayUngraded copyAuction$21.36£16.08€18.81
Aug 27, 2026RaweBayDialga GX 138/131 Forbidden Light Rainbow Pokemon 138/131$21.36£16.08€18.81
Aug 23, 2026RaweBayDialga GX 138/131 Rainbow Secret Rare Forbidden Light Pokemon TCG LP 138/131$59.99£45.15€52.83
Aug 23, 2026RaweBayUngraded copyBest offer$59.99£45.15€52.83
Aug 20, 2026RaweBayUngraded copyBest offer$69.99£52.68€61.64
Aug 20, 2026RaweBayDialga GX 138/131 Rainbow Rare Forbidden Light Pokemon Holo Near Mint 138/131$69.99£52.68€61.64
Aug 16, 2026CGC10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$422.69£318.14€372.25
Aug 12, 2026RaweBayUngraded copyBest offer$79.99£60.20€70.44
Aug 12, 2026RaweBayDialga GX - 138/131 Forbidden Light Rainbow Pokemon - MP$55£41.40€48.44
Aug 12, 2026RaweBayUngraded copyBuy it now$55£41.40€48.44
Aug 11, 2026RaweBayUngraded copyAuction$38£28.60€33.47
Aug 11, 2026RaweBayPokémon TCG Dialga GX Secret 138/131 Sm-Forbidden Light Rainbow Rare 138/131$38£28.60€33.47
Aug 9, 2026PSA10eBayPokemon Dialga Gx Forbidden Light 138/131 Secret Rare PSA 10 Gem Mint 138/131$676£508.79€595.33
Aug 9, 2026PSA10eBayCert 118773394Auction$676£508.79€595.33
Aug 8, 2026PSA9eBayCert 139920015Auction$70£52.69€61.65
Aug 7, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$74.99£56.44€66.04
Aug 7, 2026PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$70£52.69€61.65
Aug 7, 2026PSA7eBayCert 139920016Auction$36£27.10€31.70
Aug 6, 2026PSA7eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$36£27.10€31.70
Aug 3, 2026PSA9eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 9 #138$80£60.21€70.45
Aug 3, 2026PSA9eBayCert 149543788Best offer$80£60.21€70.45
Aug 3, 2026RaweBayDialga GX 138/131 Holo Rainbow Rare Forbidden Light LP Pokemon Cards 138/131$31£23.33€27.30
Aug 3, 2026RaweBayUngraded copyAuction$31£23.33€27.30
Aug 1, 2026PSA10eBayDIALGA GX 2018 POKEMON S&M FORBIDDEN LIGHT FA SECRET RARE #138 PSA 10 Q3137 #138$597.48£449.69€526.18
Aug 1, 2026PSA10eBayCert 155202506Auction$597.48£449.69€526.18
Jul 30, 2026RaweBayDialga GX - 138/131 - Pokemon Forbidden Light Sun & Moon Secret Rare Card NM 138/131$81.87£61.62€72.10
Jul 28, 2026RaweBayPokemon TCG Dialga GX 138/131 SM-Forbidden Light Secret Rare Holo Basic 180HP 138/131$25£18.82€22.02
Jul 28, 2026RaweBayUngraded copyBest offer$25£18.82€22.02
Jul 24, 2026PSA9eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 9 #138$85£63.97€74.86
Jul 24, 2026PSA9eBayCert 125594586Best offer$77£57.95€67.81
Jul 23, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$899£676.63€791.72
Jul 23, 2026PSA10eBayCert 41378849Best offer$809.10£608.97€712.55
Jul 23, 2026PSA7eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 7 #138$99.99£75.26€88.06
Jul 23, 2026PSA7eBayCert 136055942Buy it now$99.99£75.26€88.06
Jul 20, 2026RaweBayPokemon Dialga GX 138/131 Rainbow Rare Forbidden Light Full Art Holo NM$94.10£70.82€82.87
Jul 17, 2026PSA10eBayDIALGA GX 2018 POKEMON S&M FORBIDDEN LIGHT FA SECRET RARE #138 PSA 10 Q3137 #138$810£609.64€713.34
Jul 17, 2026PSA10eBayCert 155202506Auction$810£609.64€713.34
Jul 11, 2026RaweBayDIALGA GX 2018 POKEMON FORBIDDEN LIGHT RAINBOW SECRET RARE #138/131 Q7217-6 138/131$43.01£32.37€37.88
Jul 11, 2026RaweBayUngraded copyAuction$43.01£32.37€37.88
Jul 7, 2026RaweBayDialga GX Rainbow Rare 138/131 Pokemon Card TCG Forbidden Light NM 138/131$65£48.92€57.24
Jul 7, 2026RaweBayUngraded copyAuction$65£48.92€57.24
Jul 2, 2026PSA9eBayDIALGA GX 2018 POKEMON FORBIDDEN LIGHT SECRET RARE #138 PSA 9 Q0895 #138$85£63.97€74.86
Jul 2, 2026PSA9eBayCert 141923748Auction$85£63.97€74.86
Jul 2, 2026RaweBayUngraded copyBest offer$81£60.96€71.33
Jun 29, 2026RaweBayPokemon Sun & Moon Forbidden Light Dialga GX 138/131 Rainbow Secret Rare LP 138/131$75£56.45€66.05
Jun 29, 2026PSA9eBayPokemon 2018 Dialga GX 138/131 Rainbow Full Art SR Forbidden Light PSA 9 138/131$75£56.45€66.05
Jun 29, 2026PSA9eBayCert 54110864Auction$75£56.45€66.05
Jun 26, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$74.08£55.76€65.24
Jun 26, 2026RaweBayUngraded copyAuction$26£19.57€22.90
Jun 23, 2026RaweBayDialga GX Rainbow Rare 138/131 Pokemon Card TCG Forbidden Light NM 138/131$64.95£48.88€57.20
Jun 23, 2026RaweBayUngraded copyBest offer$64.95£48.88€57.20
Jun 23, 2026PSA7eBay2018 Pokemon Forbidden Light Dialga GX 138/131 Rainbow Rare CGC 7.5$22.61£17.02€19.91
Jun 21, 2026PSA9eBayPSA 9 Dialga GX Rainbow Rare 138/131 Forbidden Light Secret Rare Pokemon 138/131$81.53£61.36€71.80
Jun 21, 2026PSA9eBayCert 124698017Auction$81.53£61.36€71.80
Jun 21, 2026RaweBayPokemon Dialga GX 138/131 Rainbow Rare Forbidden Light Full Art Holo NM/M 138/131$79.44£59.79€69.96
Jun 21, 2026RaweBayUngraded copyBuy it now$79.32£59.70€69.85
Jun 18, 2026RaweBayUngraded copyBest offer$74.20£55.85€65.35
Jun 18, 2026RaweBayDialga GX 138/131 Rainbow Rare Forbidden Light Pokemon NM 138/131$73.63£55.42€64.84
Jun 17, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$839.99£632.22€739.75
Jun 17, 2026PSA10eBayCert 41443274Buy it now$839.99£632.22€739.75
Jun 17, 2026PSA10eBayCert 110247035Buy it now$649.33£488.72€571.85
Jun 17, 2026PSA10eBay2018 POKEMON SUN & MOON ULTRA PRISM SECRET 164 FULL ART/DIALGA GX PSA 10 ✨$642.82£483.82€566.11
Jun 17, 2026RaweBayDialga GX (Secret) 138/131 Sm-Forbidden Light Holo Pokemon 138/131$55£41.40€48.44
Jun 17, 2026RaweBayUngraded copyBest offer$55£41.40€48.44
Jun 15, 2026PSA9eBayDialga GX 138/131 Forbidden Light Rainbow Pokemon PSA 9 138/131$100£75.26€88.07
Jun 15, 2026PSA9eBayCert 130817656Best offer$100£75.26€88.07
Jun 14, 2026RaweBayPokemon Dialga GX (Secret) 138/131 Sm-Forbidden Light Holo 138/131$45£33.87€39.63
Jun 11, 2026RaweBayDialga GX (Secret) [SM06 - 138/131]ENPokemonSM - Forbidden Light 138/131$100.96£75.99€88.91
Jun 11, 2026RaweBayPokemon TCG: Forbidden Light Secret Hyper Rainbow Rare, Dialga GX #138/131, LP 138/131$54.99£41.39€48.43
Jun 11, 2026RaweBayUngraded copyBest offer$54.99£41.39€48.43
Jun 9, 2026PSA9eBay2018 Pokemon Sun & Moon Forbidden Light Dialga #138/131 PSA 9$67.88£51.09€59.78
Jun 9, 2026PSA9eBayCert 124683511Auction$67.88£51.09€59.78
Jun 5, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$590£444.06€519.59
Jun 5, 2026PSA10eBayCert 70208179Auction$590£444.06€519.59
Jun 4, 2026RaweBayDialga GX (Secret) 138/131 Sm-Forbidden Light Holo Pokemon TCG 138/131$48£36.13€42.27
Jun 4, 2026RaweBayUngraded copyBest offer$48£36.13€42.27
Jun 2, 2026RaweBay2018 Pokemon Sun & Moon Forbidden Light Secret #138 Full Art Dialga GX$17.50£13.17€15.41
Jun 2, 2026RaweBayUngraded copyAuction$17.50£13.17€15.41
May 28, 2026PSA10eBayPSA 10 GEM MINT Dialga GX Forbidden Light Secret Rare Pokemon 2018 138/131 #138$600£451.59€528.40
May 28, 2026PSA10eBayCert 45568312Best offer$600£451.59€528.40
May 23, 2026PSA9eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 9 #138$100£75.26€88.07
May 23, 2026PSA9eBayCert 125616473Best offer$100£75.26€88.07
May 22, 2026PSA10eBayCert 41915427Buy it now$550£413.96€484.37
May 19, 2026RaweBayPokemon Dialga GX 138/131 Forbidden Light Holo Rainbow Rare 138/131$27£20.32€23.78
May 19, 2026RaweBayUngraded copyAuction$27£20.32€23.78
May 18, 2026PSA10Fanatics CollectCert 41932643Auction$456£343.21€401.59
May 15, 2026PSA10eBayPSA 10 GEM MINT Dialga GX Forbidden Light Secret Rare Pokemon 2018 138/131 #138$550£413.96€484.37
May 13, 2026RaweBayDialga GX (Secret) 138/131 Sm-Forbidden Light Holo Pokemon TCG LP 138/131$49.97£37.61€44.01
May 13, 2026RaweBayUngraded copyBuy it now$49.97£37.61€44.01
May 12, 2026PSA10eBayDialga GX PSA 10 Pokémon TCG 2018 Forbidden Light 138/131 Holo Secret Rare 138/131$400£301.06€352.27
May 12, 2026PSA10eBayCert 41378849Best offer$400£301.06€352.27
May 11, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$569.99£429€501.97
May 11, 2026PSA10eBayCert 129272125Best offer$569.99£429€501.97
May 11, 2026RaweBayUngraded copyBest offer$45£33.87€39.63
May 9, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$550£413.96€484.37
May 9, 2026PSA10eBayCert 145933962Buy it now$550£413.96€484.37
May 9, 2026PSA10eBayCert 41412366Buy it now$525£395.14€462.35
May 9, 2026PSA10eBayPSA 10 GEM MINT Dialga GX Forbidden Light Secret Rare 2018 Pokemon 138/131 #138$525£395.14€462.35
May 9, 2026RaweBayUngraded copyBuy it now$47.49£35.74€41.82
May 9, 2026RaweBayPokémon TCG Dialga GX Secret 138/131 Sm-Forbidden Light Rainbow Rare 138/131$46£34.62€40.51
May 9, 2026RaweBayUngraded copyAuction$46£34.62€40.51
May 8, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$67.75£50.99€59.67
May 7, 2026RaweBayPokemon Dialga GX 138/131 Rainbow Rare Forbidden Light Full Art Holo NM$65.42£49.24€57.61
May 7, 2026RaweBayUngraded copyBest offer$65.28£49.13€57.49
May 4, 2026PSA9Fanatics CollectCert 142260827Auction$62.40£46.97€54.95
Apr 29, 2026PSA10eBay2018 Pokemon Sun & Moon Forbidden Light Dialga GX Fa Secret PSA 10 #138 Gem Mint #138$525£395.14€462.35
Apr 28, 2026RaweBayDialga GX (Secret) 138/131 Sm-Forbidden Light Holo Pokemon TCG 138/131$50£37.63€44.03
Apr 28, 2026RaweBayUngraded copyBest offer$50£37.63€44.03
Apr 24, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$75.70£56.98€66.67
Apr 24, 2026PSA9eBay135787621 Dialga GX 2018 Pokemon Sun & Moon Forbidden Light #138 PSA 9 138/131$71£53.44€62.53
Apr 24, 2026PSA9eBayCert 135787621Auction$71£53.44€62.53
Apr 22, 2026RaweBayUngraded copyBuy it now$87.74£66.04€77.27
Apr 19, 2026RaweBayUngraded copyBest offer$52£39.14€45.79
Apr 14, 2026RaweBayDialga GX (Secret) 138/131 Sm-Forbidden Light Holo Pokemon TCG 138/131$75£56.45€66.05
Apr 14, 2026RaweBayUngraded copyBest offer$75£56.45€66.05
Apr 14, 2026RaweBayUngraded copyAuction$7£5.27€6.16
Apr 13, 2026RaweBayUngraded copyBest offer$40£30.11€35.23
Apr 12, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$67£50.43€59
Apr 8, 2026RaweBayUngraded copyBest offer$44.98£33.85€39.61
Apr 6, 2026PSA10eBayCert 122874181Best offer$399.99£301.05€352.26
Apr 5, 2026PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$399.99£301.05€352.26
Apr 5, 2026RaweBayUngraded copyBest offer$89.99£67.73€79.25
Apr 3, 2026RaweBayPokémon TCG Dialga GX Secret 138/131 Sm-Forbidden Light Rainbow Rare 138/131$40£30.11€35.23
Apr 3, 2026RaweBayUngraded copyAuction$40£30.11€35.23
Apr 2, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$67.94£51.13€59.83
Mar 31, 2026RaweBayUngraded copyAuction$23.50£17.69€20.70
Mar 23, 2026RaweBayUngraded copyAuction$57.90£43.58€50.99
Mar 21, 2026RawTCGplayerNm #138 Near Mint English$80£60.21€70.45
Mar 13, 2026PSA10eBayPSA 10 Dialga GX Secret Rare Forbidden Light Pokemon 138/131 (Guard Included) 138/131$440£331.16€387.49
Mar 13, 2026PSA10eBayCert 105716188Best offer$440£331.16€387.49
Mar 11, 2026RaweBayUngraded copyBest offer$50£37.63€44.03
Mar 9, 2026PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$449.99£338.68€396.29
Mar 9, 2026PSA10eBayCert 136055941Buy it now$449.99£338.68€396.29
Mar 6, 2026RaweBayUngraded copyBuy it now$49.99£37.62€44.02
Mar 4, 2026PSA9eBayDialga GX 138/131 Forbidden Light Rainbow Pokemon PSA 9 138/131$99£74.51€87.19
Mar 4, 2026PSA9eBayCert 41387586Best offer$99£74.51€87.19
Mar 4, 2026RaweBayUngraded copyBest offer$64.60£48.62€56.89
Feb 21, 2026RaweBayUngraded copyBest offer$33.21£25€29.25
Feb 18, 2026RaweBayUngraded copyBuy it now$300£225.79€264.20
Feb 17, 2026RaweBayUngraded copyBest offer$65£48.92€57.24
Feb 13, 2026PSA9eBay2018 Pokémon Forbidden Light Dialga GX Full Art Secret 138/131 PSA 9 138/131$78£58.71€68.69
Feb 13, 2026PSA9eBayCert 96372896Auction$78£58.71€68.69
Feb 8, 2026PSA10eBayPokemon Dialga GX Forbidden Light Secret Rare Full Art #138 PSA 10 Gem Mint #138$299.90£225.72€264.11
Feb 8, 2026PSA10eBayCert 102738831Best offer$299.90£225.72€264.11
Feb 7, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$103.07£77.58€90.77
Jan 26, 2026PSA8eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 8 #138$57£42.90€50.20
Jan 26, 2026PSA8eBayCert 130518393Auction$57£42.90€50.20
Jan 19, 2026PSA10Fanatics CollectCert 109756118Auction$228£171.60€200.79
Jan 19, 2026PSA10eBayPokemon Dialga GX Forbidden Light Secret Rare Full Art #138 PSA 10 Gem Mint$204.50£153.92€180.10
Jan 19, 2026PSA10eBayCert 128066033Auction$204.50£153.92€180.10
Jan 1, 2026RawTCGplayerDialga GX (Secret) #138 Near Mint English$72.94£54.90€64.24
Dec 30, 2025PSA10eBay2018 Pokemon Sun & Moon Forbidden Light Secret #138 FA Dialga GX PSA 10 GEM MINT$177.50£133.59€156.32
Dec 30, 2025PSA10eBayCert 41915427Auction$177.50£133.59€156.32
Dec 17, 2025PSA10eBay41412366 Dialga GX 2018 Pokemon Sun & Moon Forbidden Light #138 PSA 10 138/131$209.50£157.68€184.50
Dec 17, 2025PSA10eBayCert 41412366Auction$209.50£157.68€184.50
Dec 8, 2025PSA10eBayPokemon Dialga GX Forbidden Light Secret Rare Full Art #138 PSA 10 Gem Mint$301£226.55€265.08
Dec 8, 2025PSA10eBayCert 41394846Auction$301£226.55€265.08
Dec 1, 2025PSA10Fanatics CollectCert 122874181Auction$408£307.08€359.31
Dec 1, 2025RawTCGplayerDialga GX (Secret) #138 Near Mint English$74.07£55.75€65.23
Nov 19, 2025PSA9eBayDialga GX 138/131 Forbidden Light Rainbow Pokemon PSA 9 POP 143 138/131$135£101.61€118.89
Nov 19, 2025PSA9eBayCert 68665969Best offer$135£101.61€118.89
Nov 10, 2025PSA9eBayCert 130416035Auction$122.50£92.20€107.88
Nov 10, 2025PSA9eBayDialga GX 138/131 Forbidden Light Rainbow Pokemon PSA 9 POP 140 138/131$122.50£92.20€107.88
Nov 6, 2025PSA102018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Alt · Auction$312£234.83€274.77
Nov 4, 2025RawTCGplayerDialga GX (Secret) #138 Near Mint English$74.13£55.79€65.28
Oct 31, 2025PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$110£82.79€96.87
Oct 31, 2025PSA9eBayCert 119193404Best offer$110£82.79€96.87
Oct 10, 2025PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$400£301.06€352.27
Oct 10, 2025PSA10eBayCert 41915427Best offer$400£301.06€352.27
Oct 2, 2025PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$750£564.48€660.50
Oct 2, 2025PSA10eBayCert 57917208Best offer$600£451.59€528.40
Sep 29, 2025PSA10eBayDialga GX Forbidden Light Rainbow Pokemon 138/131 PSA 10 Gem Mint 138/131$440£331.16€387.49
Sep 29, 2025PSA10eBayCert 118858583Buy it now$418£314.61€368.12
Sep 15, 2025PSA10Fanatics CollectCert 120352802Buy it now$450£338.69€396.30
Sep 8, 2025PSA10eBayPSA 10 GEM MINT Dialga GX Forbidden Light Rainbow Pokemon 138/131 138/131$450£338.69€396.30
Sep 8, 2025PSA10eBayCert 110247035Buy it now$420£316.11€369.88
Sep 8, 2025PSA10eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT SECRET #138 FULL ART/DIALGA GX PSA 10 #138$410£308.59€361.07
Sep 8, 2025PSA10eBayCert 122291792Auction$410£308.59€361.07
Aug 16, 2025CGC10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$269£202.46€236.90
Aug 8, 2025PSA10eBayCert 112384534Best offer$366.95£276.18€323.16
Aug 7, 2025PSA10eBayPSA 10 GEM MINT Dialga GX Forbidden Light Rainbow Pokemon 138/131 138/131$366.95£276.18€323.16
Aug 3, 2025PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$450£338.69€396.30
Aug 3, 2025PSA10eBayCert 114524063Best offer$450£338.69€396.30
Aug 3, 2025PSA10eBayCert 103122502Auction$430£323.64€378.69
Jul 1, 2025PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$274.64£206.71€241.87
Jul 1, 2025PSA10eBayCert 56276689Best offer$240.58£181.07€211.87
Jun 23, 2025PSA9Fanatics CollectCert 107088692Auction$39.60£29.80€34.87
Jun 19, 2025PSA10eBayCert 102738831Best offer$254.83£191.80€224.42
Jun 19, 2025PSA9eBayPokemon Forbidden Light Secret Rare Dialga Gx #138 Psa 9 #138$45£33.87€39.63
Jun 19, 2025PSA9eBayCert 79611658Best offer$45£33.87€39.63
May 31, 2025PSA10eBayCert 100992176Best offer$260.06£195.73€229.03
May 26, 2025PSA8eBayDialga 138/131 GX PSA 8 Forbidden Light Secret RAINBOW RARE HOLO Pokemon TCG 🌈 138/131$26£19.57€22.90
May 25, 2025PSA8eBayCert 75047681Auction$26£19.57€22.90
May 9, 2025PSA10eBayCert 102903263Best offer$213.06£160.36€187.64
Apr 7, 2025PSA10eBayCert 93472449Buy it now$199.99£150.52€176.13
Mar 19, 2025PSA10eBayCert 65695866Auction$198.50£149.40€174.81
Mar 19, 2025PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$198.50£149.40€174.81
Mar 16, 2025PSA9eBayCert 85154357Auction$22.28£16.77€19.62
Mar 16, 2025PSA9eBayPOKEMON TCG SUN & MOON FORBIDDEN LIGHT DIALGA GX 138/131 SECERT RARE PSA MINT 9 138/131$22.27£16.76€19.61
Feb 5, 2025PSA9eBayCert 41387583Best offer$50£37.63€44.03
Feb 3, 2025PSA9eBayCert 69091372Best offer$62.24£46.84€54.81
Feb 3, 2025PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$50£37.63€44.03
Jan 16, 2025PSA10eBayCert 91652091Best offer$85£63.97€74.86
Jan 15, 2025PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$85£63.97€74.86
Dec 2, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$87.99£66.23€77.49
Oct 31, 2024PSA10eBayCert 83949772Auction$83£62.47€73.10
Oct 31, 2024PSA8eBay2018 Pokemon Sun & Moon Forbidden Light FA Dialga GX Secret #138 PSA 8 #138$39.99£30.10€35.22
Oct 30, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$83£62.47€73.10
Oct 30, 2024PSA8eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$39.99£30.10€35.22
Oct 24, 2024PSA9eBayPokemon Forbidden Light Dialga GX 138/131 Secret Rare PSA 9 MINT 🔥📈 138/131$35£26.34€30.82
Oct 23, 2024PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$35£26.34€30.82
Sep 16, 2024PSA8eBayDialga GX 138/131 Pokemon Sun & Moon Forbidden Light CGC 8.5 138/131$21.64£16.29€19.06
Aug 7, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$95£71.50€83.66
Jul 31, 2024PSA10eBayCert 94571934Auction$82£61.72€72.21
Jul 30, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$82£61.72€72.21
Jul 29, 2024PSA9eBayPSA 9 MINT Pokemon Dialga GX Forbidden Light Secret Rare #138 2018$43.44£32.69€38.26
Jul 28, 2024PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$43.34£32.62€38.17
Jun 19, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$80£60.21€70.45
Jun 14, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$89.99£67.73€79.25
Jun 9, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$115.69£87.07€101.88
Jun 9, 2024PSA10eBayCert 78672460Auction$115.69£87.07€101.88
May 3, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$109.99£82.78€96.86
Mar 21, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$97£73.01€85.42
Mar 21, 2024PSA10eBayCert 85604510Auction$97£73.01€85.42
Mar 16, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$132.50£99.73€116.69
Feb 20, 2024PSA8eBay2018 Pokemon Sun & Moon Forbidden Light Secret #138 FA Dialga Gx PSA 8 NM-MT$15.50£11.67€13.65
Feb 19, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$107.50£80.91€94.67
Feb 19, 2024PSA8eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$15.50£11.67€13.65
Jan 5, 2024PSA10eBayCert 65695866Auction$91.48£68.85€80.56
Jan 4, 2024PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$91.48£68.85€80.56
Dec 17, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$176.92£133.16€155.81
Dec 11, 2023PSA10eBayCert 67791537Auction$99.69£75.03€87.79
Dec 10, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$99.69£75.03€87.79
Nov 21, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$112.50£84.67€99.08
Oct 24, 2023PSA10eBayCert 79028317Auction$91£68.49€80.14
Oct 23, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$91£68.49€80.14
Oct 20, 2023PSA9eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT DIALGA GX 138/131 SECERT RARE PSA MINT 9 138/131$30£22.58€26.42
Oct 20, 2023PSA9eBayCert 76632902Auction$30£22.58€26.42
Oct 19, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$30£22.58€26.42
Aug 16, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$150£112.90€132.10
Aug 3, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$25£18.82€22.02
Jul 31, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$150£112.90€132.10
Jul 17, 2023PSA8eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$15£11.29€13.21
Jul 10, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$26£19.57€22.90
Jul 10, 2023PSA9eBay2018 POKEMON SUN & MOON FORBIDDEN LIGHT DIALGA GX 138/131 SECERT RARE PSA MINT 9 138/131$26£19.57€22.90
Jul 10, 2023PSA9eBayCert 58178454Auction$26£19.57€22.90
Jun 24, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$179.99£135.47€158.51
Jun 9, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$110£82.79€96.87
May 24, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$67£50.43€59
May 3, 2023PSA4eBayCert 72768655Auction$6.50£4.89€5.72
May 3, 2023PSA4eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$6.50£4.89€5.72
Apr 23, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$99.99£75.26€88.06
Mar 21, 2023PSA9eBayDialga GX Secret Rainbow | PSA 9 MINT | 2018 SM Forbidden Light #138 | Pokemon$65.99£49.67€58.12
Mar 17, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$65.99£49.67€58.12
Feb 20, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$32£24.08€28.18
Feb 20, 2023PSA9eBayDialga GX Secret Rainbow | PSA 9 MINT | 2018 SM Forbidden Light #138 | Pokemon$32£24.08€28.18
Feb 20, 2023PSA9eBayCert 41387574Auction$32£24.08€28.18
Feb 11, 2023PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$126.57£95.26€111.47
Feb 11, 2023PSA10eBayCert 41387588Auction$126.57£95.26€111.47
Feb 9, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$39.10£29.43€34.43
Feb 2, 2023PSA7eBay2018 POKEMON SUN & MOON FA DIALGA GX FORBIDDEN LIGHT SECRET #138 PSA 7$35£26.34€30.82
Feb 1, 2023PSA7eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$28£21.07€24.66
Jan 18, 2023PSA9eBayDialga GX Secret Rainbow | PSA 9 MINT | 2018 SM Forbidden Light #138 | Pokemon$28.01£21.08€24.67
Jan 18, 2023PSA9eBayCert 68201189Auction$28.01£21.08€24.67
Jan 17, 2023PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$28.01£21.08€24.67
Jan 13, 2023PSA8eBayPokemon Dialga GX Rainbow Secret Rare 138/131 SM Forbidden Light PSA 8$28.36£21.35€24.98
Dec 27, 2022PSA9eBayCert 67054088Auction$32.39£24.38€28.52
Dec 27, 2022PSA9eBayPokemon Dialga GX Rainbow Secret Rare 138/131 SM Forbidden Light PSA 9$31.98£24.07€28.16
Dec 26, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$32.39£24.38€28.52
Dec 12, 2022PSA9eBayPSA 9 - Pokemon Card - Forbidden Light 138/131 - DIALGA GX (full art) MINT$85.40£64.28€75.21
Dec 11, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$85.40£64.28€75.21
Dec 9, 2022PSA9eBay2018 Pokemon Forbidden Light Dialga GX Full Art 138 Secret Rare PSA 9 #138$25.02£18.83€22.03
Dec 9, 2022PSA9eBayCert 67076358Auction$25.02£18.83€22.03
Dec 8, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$25.02£18.83€22.03
Nov 28, 2022PSA8eBay2018 Pokemon Forbidden Light Dialga GX Full Art 138 Secret Rare PSA 8 #138$29.99£22.57€26.41
Nov 27, 2022PSA8eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$29.99£22.57€26.41
Nov 12, 2022PSA7eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$18.52£13.94€16.31
Nov 12, 2022PSA7eBay2018 POKEMON SUN & MOON FA DIALGA GX FORBIDDEN LIGHT SECRET #138 PSA 7$18.52£13.94€16.31
Nov 11, 2022PSA6eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$20£15.05€17.61
Nov 6, 2022PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Best offer$129.99£97.84€114.48
Oct 6, 2022PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$119.99£90.31€105.67
Sep 24, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$32.69£24.60€28.79
Sep 13, 2022PSA9eBay2018 POKEMON SUN & MOON FA DIALGA GX FORBIDDEN LIGHT SECRET #138 PSA 9 MINT$26.50£19.95€23.34
Sep 13, 2022PSA9eBayCert 58591482Auction$26.50£19.95€23.34
Sep 12, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$26.50£19.95€23.34
Sep 8, 2022PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$120£90.32€105.68
Aug 22, 2022PSA10eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Buy it now$129.99£97.84€114.48
Aug 21, 2022PSA9eBay2018 Pokemon Sun and Moon Forbidden Light Dialga Gx #138Auction$26.77£20.15€23.58

More from SM - Forbidden Light

All 146 cards →
Lucario GX (Secret)Lucario GX (Secret)$127.26£95.78€112.07
Greninja GX (Secret)Greninja GX (Secret)$117.64£88.54€103.60
Xerneas GX (Secret)Xerneas GX (Secret)$65.59£49.37€57.76
Zygarde GX (Secret)Zygarde GX (Secret)$63.24£47.60€55.69
Greninja GX (Full Art)Greninja GX (Full Art)$62.19£46.81€54.77
Yveltal GX (Secret)Yveltal GX (Secret)$56.02£42.16€49.34

Grading odds

PSA has graded 492 copies. Where they landed:

PSA 1019539.6%
PSA 919940.4%
PSA 86112.4%
PSA 7204.1%
PSA 6112.2%
Lower81.6%

Why the verdict weights the odds

Only 39.6% of copies reach a 10, which is why the top price is the wrong number to plan around. Weighting each grade’s PSA price by these odds, a submission is worth $333.34£250.89€293.56 on average against $169.99£127.94€149.70 for the card plus $79.99£60.20€70.44 at Regular, the cheapest level PSA will insure it at. That clears $163.35£122.94€143.85, so grading a clean copy is worth the wait.

1 of the 5 grades priced above had no sales at that grade, so the figure is modelled from the grades that did rather than observed.

Card facts

Card number
138/131
Set released
May 4, 2018
PSA population, all printings
492
Printings priced
1
From the same setSM - Forbidden Light146 cards
Set value
$1.4k£1.1k€1.3k
7 day move
+0.4%
Open set value list →

Looking for a different one? All 72 Dialga cards we price →

The same card in other sets

SM - Ultra Prism164/156$46.43£34.95€40.89SM - Forbidden Light125/131$34.76£26.16€30.61SM - Ultra Prism146/156$20.83£15.68€18.34SM - Ultra Prism100/156$12.95£9.75€11.40SM - Forbidden Light82/131$8.69£6.54€7.65

What moves the price of this card

The Dialga GX (Secret) on this page is the Holofoil printing from SM - Forbidden Light, and it trades at $75.89£57.12€66.83 in near mint condition. Only one printing of this card was produced, so there is no cheaper version to confuse it with.

Graded, it runs PSA 7 $32£24.08€28.18, PSA 8 $39.99£30.10€35.22, PSA 9 $80£60.21€70.45, CGC/BGS 9.5 $88£66.23€77.50, PSA 10 $737.50£555.08€649.49. PSA has graded 492 copies of it. 381 completed sales are on file.

What is a PSA 10 Dialga GX (Secret) worth?

A PSA 10 Dialga GX (Secret) from SM - Forbidden Light sells for $737.50. 41.5% of the copies PSA has graded came back a 10, so that price is the best case rather than the one a submission should expect.

Is Dialga GX (Secret) from SM - Forbidden Light worth grading?

On the numbers, yes. The average submission is worth $345.47 with every grade weighted by how often this card comes back at it, against $70 for a raw copy plus $99.99 to send it through PSA Regular, so it clears $175.48.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $737.50£555.08€649.49. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.