You can buy empty Grand Soul Gems in The Elder Scrolls IV: Oblivion from several sources:
- At the Mystic Emporium in the Imperial City Market District, two shopkeepers-Aurelinwae and Calindil-sell empty Grand Soul Gems. Calindil sells two, and Aurelinwae sells one
- Most Mages Guild Halls have at least one Grand Soul Gem for sale, including empty ones. Examples include the Mages Guilds in Chorrol, Skingrad, Bravil, and the Arcane University in Imperial City
- Alchemists in the major cities' Mage Guilds or alchemy shops often stock soul gems, including Grand Soul Gems, although the stock is limited and restocks over time
If you prefer not to buy, you can also find empty Grand Soul Gems as loot in certain dungeons unlocked during the Vampire Cure quest, such as Squandered Mine and Crayfish Cave near Drakelowe
. Additionally, you can steal or pickpocket empty Grand Soul Gems from Mages Guild members and locked display cases in the Arcane University and Mages Guild halls, but this carries the risk of getting caught
. In summary, the best places to buy empty Grand Soul Gems are the Mystic Emporium in Imperial City and Mage Guild shops across major cities. Alternatively, you can find or steal them during quests or exploration
