The Diviner's outfit is an experience-boosting outfit inspired by the appearances of Faizan Augour and Orla Fairweather. It is acquired via Treasure Hunter, as a possible reward from an experience-earning Guthixian Cache, or it can be bought for thaler from Stanley Limelight Traders.
If the player doesn't own the full diviner's outfit set, there is a chance they will receive a part they don't own upon completing a cache (including ironmen). The chance of receiving a piece is 0.5% per point that the player scores within the cache (50% at 100 points, 40% at 80 points, etc.). Pieces can only be obtained if the player receives experience from the cache.
Each piece of the outfit costs 360 Thaler from Stanley Limelight Traders, totalling 1,800 Thaler for the full set.