 Dialga EX (122 Secret Rare) #122/119XY - Phantom Forces · Holofoil · 2014 | $1,029 | $1,706 | $14,179 |
 Arceus & Dialga & Palkia GX (Alternate Full Art) #221/236SM - Cosmic Eclipse · Holofoil · 2019 | $568 | $845 | $3,848 |
 Dialga EX (Team Plasma) (99 Full Art) #99/101Plasma Blast · Holofoil · 2013 | $394 | $1,200 | $2,487 |
 Dialga (Shiny) #SL2Call of Legends · Holofoil · 2011 | $363 | $1,189 | $4,881 |
 Palkia & Dialga Legends - 101/102 + 102/102 (Single Oversized Promo) #101/102 + 102/102Jumbo Cards · Holofoil · 2015 | $300 | — | — |
 Dialga LV.X #105/106Great Encounters · Holofoil · 2008 | $250 | $1,281 | $1,946 |
 Dialga G LV.X #122/127Platinum · Holofoil · 2009 | $231 | — | — |
 Dialga LV.X #DP17Diamond and Pearl Promos · Holofoil · 2007 | $169 | $953 | $6,800 |
 Palkia & Dialga Legend (Bottom) #102/102Triumphant · Holofoil · 2010 | $149 | $310 | $1,280 |
 Palkia & Dialga Legend (Top) #101/102Triumphant · Holofoil · 2010 | $135 | $368 | $3,950 |
 Origin Forme Dialga VSTAR (Secret) #GG68/GG70Crown Zenith: Galarian Gallery · Holofoil · 2023 | $127 | $122 | $296 |
 Arceus & Dialga & Palkia GX (Secret) #258/236SM - Cosmic Eclipse · Holofoil · 2019 | $100 | $107 | $542 |
 Dialga GX (Secret) #138/131SM - Forbidden Light · Holofoil · 2018 | $75.23 | — | — |
 Origin Forme Dialga V (Alternate Full Art) #177/189Astral Radiance · Holofoil · 2022 | $62.15 | $66.90 | $196 |
 Dialga (Full Art Promo) #XY77XY Promos · Holofoil · 2013 | $61.76 | $623 | $748 |
 Arceus & Dialga & Palkia GX (Full Art) #220/236SM - Cosmic Eclipse · Holofoil · 2019 | $60.60 | $81.85 | $415 |
 Dialga LV.X #DP37Diamond and Pearl Promos · Holofoil · 2007 | $50.51 | — | — |
 Dialga #4/100Majestic Dawn · Holofoil · 2008 | $48.46 | $250 | $888 |
 Dialga GX (Secret Rare) #164/156SM - Ultra Prism · Holofoil · 2018 | $46.40 | $89.82 | $476 |
 Dialga #1/130Diamond and Pearl · Holofoil · 2007 | $42.93 | — | — |
 Dialga #3/95Call of Legends · Holofoil · 2011 | $37.85 | — | — |
| Dialga #4/100Majestic Dawn · Reverse Holofoil · 2008 | $35.73 | $100 | $401 |
 Dialga EX (Team Plasma) #65/101Plasma Blast · Holofoil · 2013 | $35.63 | $50.00 | $253 |
 Dialga GX (Full Art) #125/131SM - Forbidden Light · Holofoil · 2018 | $34.89 | — | — |
 Dialga - 16/106 (Cosmos Holo) #016/106Deck Exclusives · Holofoil · 2016 | $32.86 | — | — |
 Arceus & Dialga & Palkia GX #156/236SM - Cosmic Eclipse · Holofoil · 2019 | $30.53 | $47.44 | $239 |
![Dialga - 16/106 [Platinum] #016/106](/ci/t/155604_200w.jpg) Dialga - 16/106 [Platinum] #016/106Burger King Promos · Reverse Holofoil · 2026 | $26.69 | — | — |
 Dialga (6) #6/127Platinum · Holofoil · 2009 | $23.24 | $279 | $2,100 |
 Dialga (Japanese 11th Movie Commemoration Set) #008/009Miscellaneous Cards & Products · Holofoil · 2026 | $22.32 | — | — |
 Dialga - DP26 (DP Black Star Promo) #DP26Jumbo Cards · Holofoil · 2015 | $20.90 | — | — |
 Dialga #DP49Diamond and Pearl Promos · Holofoil · 2007 | $20.88 | — | — |
 Dialga GX (Full Art) #146/156SM - Ultra Prism · Holofoil · 2018 | $20.69 | $50.14 | $310 |
 Dialga #DP26Diamond and Pearl Promos · Holofoil · 2007 | $20.08 | $205 | $1,849 |
| Dialga #1/130Diamond and Pearl · Reverse Holofoil · 2007 | $19.44 | — | — |
 Dialga G #7/127Platinum · Holofoil · 2009 | $19.30 | $143 | $579 |
 Dialga (5) #5/127Platinum · Holofoil · 2009 | $18.63 | $99.99 | $544 |
 Origin Forme Dialga VSTAR - 198/189 (Secret) #198/189Astral Radiance · Holofoil · 2022 | $17.14 | $21.89 | $72.18 |
 Dialga (23) #23/127Platinum · Reverse Holofoil · 2009 | $15.48 | $49.00 | $141 |
| Dialga G #7/127Platinum · Reverse Holofoil · 2009 | $14.26 | $155 | $233 |
 Origin Forme Dialga VSTAR - 210/189 (Secret) #210/189Astral Radiance · Holofoil · 2022 | $13.57 | $25.00 | $96.85 |
 Dialga G LV.X - 2009 (Tsubasa Nakamura) #122/127World Championship Decks · Normal · 2018 | $13.27 | — | — |
 Dialga GX #100/156SM - Ultra Prism · Holofoil · 2018 | $13.18 | $45.00 | $118 |
| Dialga (6) #6/127Platinum · Reverse Holofoil · 2009 | $12.45 | $108 | $127 |
| Dialga (5) #5/127Platinum · Reverse Holofoil · 2009 | $12.34 | $52.50 | $555 |
 Dialga G LV.X - 2010 (Yuta Komatsuda) #122/127World Championship Decks · Normal · 2018 | $12.23 | — | — |
| Dialga #3/95Call of Legends · Reverse Holofoil · 2011 | $10.88 | — | — |
 Dialga EX #62/119XY - Phantom Forces · Holofoil · 2014 | $10.84 | $50.00 | $435 |
 Dialga G - 7/127 (League Promo) #007/127League & Championship Cards · Reverse Holofoil · 2016 | $10.53 | — | — |
 Origin Forme Dialga VSTAR #114/189Prize Pack Series Cards · Holofoil · 2022 | $9.34 | — | — |
 Dialga GX #82/131SM - Forbidden Light · Holofoil · 2018 | $8.69 | $38.14 | $98.00 |
 Dialga #16/106Great Encounters · Reverse Holofoil · 2008 | $7.95 | — | — |
 Dialga G - 2009 (Tsubasa Nakamura) #7/127World Championship Decks · Normal · 2018 | $5.87 | — | — |
 Origin Forme Dialga V #113/189Prize Pack Series Cards · Holofoil · 2022 | $5.55 | — | — |
 Dialga G - 2010 (Yuta Komatsuda) #7/127World Championship Decks · Normal · 2018 | $4.99 | — | — |
 Origin Forme Dialga V #SWSH255Sword & Shield Promo Cards · Holofoil · 2019 | $3.84 | $18.25 | $102 |
 Origin Forme Dialga VSTAR #SWSH256Jumbo Cards · Holofoil · 2015 | $3.55 | — | — |
| Dialga (23) #23/127Platinum · Normal · 2009 | $3.03 | $29.85 | $107 |
 Dialga #112/203Prize Pack Series Cards · Normal · 2022 | $2.74 | — | — |
| Dialga #16/106Great Encounters · Normal · 2008 | $2.59 | — | — |
 Origin Forme Dialga VSTAR #114/189Astral Radiance · Holofoil · 2022 | $2.23 | — | — |
 Dialga #127/214SM - Lost Thunder · Holofoil · 2018 | $2.18 | — | — |
 Origin Forme Dialga VSTAR #SWSH256Sword & Shield Promo Cards · Holofoil · 2019 | $2.07 | $10.50 | $79.00 |
| Dialga #127/214SM - Lost Thunder · Reverse Holofoil · 2018 | $1.29 | $31.00 | $40.12 |
 Origin Forme Dialga V #113/189Astral Radiance · Holofoil · 2022 | $1.21 | — | — |
 Dialga ex #180Scarlet & Violet Promo Cards · Holofoil · 2023 | $0.80 | $9.00 | $36.32 |
 Dialga - 112/203 (Cosmos Holo) #112/203Miscellaneous Cards & Products · Holofoil · 2026 | $0.55 | — | — |
 Dialga #121/185Vivid Voltage · Reverse Holofoil · 2020 | $0.43 | $11.15 | $44.29 |
 Dialga #020/025Celebrations · Holofoil · 2021 | $0.35 | — | — |
| Dialga #121/185Vivid Voltage · Holofoil · 2020 | $0.34 | — | — |
 Dialga #112/203Evolving Skies · Reverse Holofoil · 2021 | $0.32 | $7.60 | $33.69 |
 Dialga #135/191Surging Sparks · Reverse Holofoil · 2024 | $0.29 | $17.69 | $36.59 |
| Dialga #112/203Evolving Skies · Holofoil · 2021 | $0.28 | — | — |
 Dialga #095/132Mega Evolution · Reverse Holofoil · 2025 | $0.27 | $10.43 | $32.00 |
 Dialga #121/185Deck Exclusives · Normal · 2016 | $0.25 | — | — |
 Dialga #103/12830th Celebration · Holofoil · 2026 | $0.18 | $10.42 | $31.65 |
| Dialga #095/132Mega Evolution · Holofoil · 2025 | $0.14 | $12.18 | $32.50 |
| Dialga #135/191Surging Sparks · Holofoil · 2024 | $0.14 | $10.78 | $32.83 |