Stone of Barenziah: Treasury House
One of the 24 Unusual Gems. Vex in the Ragged Flagon names them once you are in the Thieves Guild.
- Stones of Barenziah – The Reach
Where to get it
On the bedside table in Thonar Silver-Blood's bedroom, down the hall to the left of the Treasury House door in Markarth.
Found in Markarth.