Find one of these special gems in Skyrim unlocks a new miscellaneous quest, in which one of these stones must be identified by one of several appraisers. Talk to Maul or Rex in Riften to learn more about these stones — gems that are only valuable with a complete set of 24. Uncovering all 24 leads to another quest, ending with a special perk as reward for all your effort.
- Whiterun, in Dragonsreach, explore the Jarl's bedroom to find a stone.
- Whiterun, Kodlak's room in Jorrvaskr .
- Whiterun, Hall of the Dead. Check the wall crypts to find another stone.
- Solitude, just outside town, on the Dainty Sload, a boat. Look in the Captain's Quarters, on the table.
- Solitude, in Proudspire Manor. You'll find the stone in the master bedroom.
- Solitude, in the Blue Palace. Look in the Jarl's quarters, on one of his shelves.
- College of Winterhold and search the shelves of the Arch-Mage's Quarters.
- Yngvild, a cave north of Winterhold and east of Dawnstar. Search behind the throne to find a chamber containing the stone.
- Hob's Fall Cave. Search Frostflow Lighthouse. The stone is inside the Necromancer's sleeping area.
- Markarth, the Treasury House, search the master bedroom to find the stone.
- Markarth, in the Dwemer Museum. The stone will be inside, on a table behind a locked door.
- Dead Crone Rock, southwest of Markarth. The stone can be found on an altar near a Word Wall at the top.
- Dark Brotherhood Sanctuary, look in Astrid's room for the stone. This stone can only be found while completing the “With Friends Like These” or “Destroy The Dark Brotherhood” quests.
- Thalmor Embassy, look in Elenwen's Solar while completing the "Diplomatic Immunity" quest for Delphine in Riverwood.
- Rannveigs Fast northeast of Rorikstead and southeast of Morthal. Look for a prison area, and search the table with the Alchemy Lab for the stone.
- Fellglow Keep Dungeons can be found east-northeast of Whiterun. Look on the counters of the workroom to find this stone.
- Windhelm, House of Clan Shattershield, simply search the first upstairs bedroom to your left to find the stone.
- Windhelm, Palace of the Kings, look on the table in Wuunferth the Unliving's Quarters.
- Stony Creek Cave can be found north of Ansilvund, southeast of Windhelm. Look in the area where you encounter the Bandit Wizard.
- Ansilvund, in Eastmarch, contains a stone near where you encounter Fjori inside the burial chambers.
- Riften, Mistveil Keep, the Jarl's Quarters.
- Black Briar Lodge, outside Riften, the master bedroom.
- Sunderstone Gorge south of Gjukar's Monument and north of Moss Mother Cavern, in Falkreath. You'll find a Word Wall inside, with the added bonus of a nearby stone.
- Pinewatch farm, northeast of Falkreath. Inside the farmhouse, look for a secret entrance into an underground cave. Inside the Bandit Sanctuary, look for a locked door. Lockpick the door, inside you'll find the stone on a bookshelf.