No Stone Unturned (Skyrim)

Walkthrough

 * 1) The Dragonborn must bring an Unusual Gem to Vex in the Thieves Guild.
 * 2) Vex will explain that it is one of the Stones of Barenziah. She will also say that it is not worth much by itself, and that there are twenty-four of these stones. She asks the Dragonborn to come back with the full set. For locations of all gems, see here.
 * 3) After the Dragonborn returns with the gems, Vex will ask for the recovery of the Crown of Barenziah from Tolvald's Cave.

Bugs

 * If the Dragonborn is already a member of the Thieves Guild and has shown the gem to Vex, and then talks to Maul in Riften about the stone, he will suggest becoming a member of the Thieves Guild, adding a quest objective to join the Thieves Guild. While this objective cannot be cleared, it will not prevent the quest from being completed.
 * If the Dragonborn already possesses all twenty-four gems when talking to Vex for the first time, the game will not recognize them, and the quest will be incompletable. Collect twenty-three or fewer gems before talking to her to prevent this bug.
 * This bug has reportedly been fixed by patch 1.9.
 * Sometimes the quest objective will count extra stones that have not been collected (i.e., saying 10/24 Stones have been collected when the Dragonborn only has 8). The quest can be completed when the objective says 24/24, even if some stones have not been collected yet.
 * If the Dragonborn starts the Dark Brotherhood quests and does not pick up the stone after the sanctuary burns, the stone will still be available if they return to the Dark Brotherhood Sanctuary.
 * Fixes for this quest if it becomes bugged or incompletable. Note that these may not update the journal, but will unlock the appropriate responses from Vex. On the console type the following commands:
 * To initiate the search for the crown (if stones are missing)

set TGCrownGemsFound to 24 set TGCrownGemsTotal to 24 setstage TGCrown 30
 * If Vex won't talk despite having all the stones:

setobjectivecompleted TGCrown 20 1 setstage TGCrown 30
 * If the Crown is missing:

player.additem 0009dff5 setstage TGCrown 50
 * To remove the quest from the journal:

​setstage TGCrown 200

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