Krayt dragon pearlKrayt dragon pearls are lustrous, colored stones found in the last chamber of the gizzard of krayt dragons. The stones are used to help crush food eaten by them, and over time, they became rounded because of how much they moved around. They can be found in colors such as blue, green, white and black. Due to a refractive quality peculiar to the pearl, they can be used in a lightsaber if properly cleaned, prepared and installed, though it is a difficult task. The pearls are seen as exceptionally valuable by the public (easily worth upwards of a hundred thousand credits each), as well as proof a person had killed a krayt dragon (to Tusken Raiders, a sign of bravery and tactfulness).
An illustrious owner of one of these famous pearls was Revan, who got it in exchange for helping Komad Fortuna at killing an enormous canyon krayt that was nesting inside a cave near Anchorhead. What happened to Revan's pearl is uncertain, either Revan gave it to the the tusken radier Ghorfa, who recognized him as a warrior and allowed him to learn their tradition, or kept it for his lightsaber.
Prior to his death, Calo Nord intended to acquire a Krayt Dragon pearl on Tatooine, but due to the Sith quarantine of Taris, he was forced to stay and work for Davik.
The hunter Doallyn retrieved five pearls from a krayt dragon he killed while escorting Yarna d'al' Gargan across the Tatooine desert after the death of Jabba the Hutt.