The completed Crown of Barenziah is also displayed alongside other recovered items in the Thieves Guild headquarters. The reward for collecting all the Stones of Barenizah is a unique ability, Prowler’s Profit, which significantly increases the chance of finding multiple gems in places like chests or looted enemies.
Once all of them have been recovered, players then have to retrieve the Crown of Barenziah, which can be recovered from Tolvald’s Cave. Upon bringing it to an appraiser – something that requires that the Dragonborn become a member of Skyrim‘s Thieves Guild and talk to Vex – it kicks off the objective of finding every last one of the unmarked gems.
The quest “No Stone Unturned” begins when players discover their first Stone of Barenziah, a collection of 24 unusual gems scattered across the entire map.