The Iris of Grace and Iris of Occultation are key items and consumables in Elden Ring that play a vital role in deciding rewards from NPCs Jolan and Fire Knight Queelign. These items can be found in the Shadow of the Erdtree DLC and are associated with specific NPC questlines. They can be used to obtain Spirit Ashes or weapons depending on the NPC and the item given.
Players can obtain the Iris of Occultation in Elden Ring by defeating the Lesser Omenkiller at the lower section of Fort of Reprimand in the Scadu Altus region of the Realm of Shadows. Another Iris of Occultation can be obtained after defeating the Lesser Ulcerated Tree Spirit that spawns after clearing the water in the Church District.
The Iris of Grace in Elden Ring is located in the Specimen Storehouse area. To find it, teleport to the Storehouse, First Floor Site of Grace and stick to the left side while moving straight. You will come across an elevator that you must take to descend into the lower levels of the Specimen Storehouse5. Once off the elevator, follow the path on the right side and keep moving5. At the end of the room, turn left, use the stairs to head down and then turn left again3. Right before the giant innard experimental creature, you will find the Iris of Grace.