A Krayt dragon pearl
Pearls from Krayt Dragons were radiant, tinted gems discovered inside the final compartment of the krayt dragons' digestive system. These gems aided in the pulverization of the dragon's ingested meals, becoming smooth over time from constant movement. They manifested in a spectrum of hues, including blue, green, red, white, and black. Owing to a unique refractive property, these pearls could be utilized in a lightsaber after undergoing meticulous cleaning, preparation, and installation, a process fraught with difficulty. Highly esteemed by the populace, each pearl commanded a substantial value (easily exceeding one hundred thousand credits), and served as tangible evidence of a krayt dragon's demise, symbolizing bravery to Tusken Raiders.
Pearls were produced by both the Common and Greater Krayt Dragons; however, the Greater Krayt's pearls were considerably larger and, as a result, more precious.
One renowned possessor of these celebrated pearls was Revan, who acquired one in return for assisting Komad Fortuna in slaying a massive canyon krayt residing within a cave near Anchorhead. Revan subsequently gifted it to the Tusken Raiders, who acknowledged his valor and imparted their traditions, or he retained it for his lightsaber, or he exchanged it for credits.
Calo Nord had intentions of obtaining a Krayt Dragon pearl on Tatooine, but, due to the Sith's quarantine of Taris, he was compelled to remain and serve Davik. Bastila Shan's father also sought these pearls, intending to utilize the credits to finance the treatment of his wife's terminal ailment. Tragically, Mr. Shan met his end at the krayt's claws, leaving behind only his data holocron.
A smuggler from Kashyyyk, named "Shady" Pers, received a krayt pearl, as big as a human head, from a delivery originating on Tatooine. Despite its potential to fetch a hundred thousand credits, the pearl was soon seized from Pers by an ISB operative.
While escorting Yarna d'al' Gargan across the Tatooine desert following the demise of Jabba Desilijic Tiure, the hunter Doallyn recovered five pearls from a krayt dragon he had slain.
CC-5052 "Bly" carried a pair of DC-17 pistols featuring handles crafted from krayt dragon pearls.
To gain entry into the renowned sabacc game where he won the Millennium Falcon from Lando Calrissian, Han Solo bartered with a krayt dragon pearl.