The Lightsaber is "an elegant weapon, for a more civilized age". However, it is hard to get such a lightsaber to work properly, as the beam of light needs to be properly focused to create a stable blade of light that will allow the Jedi to defend oneself and others. Force Crystals are used to focus the blade of the lightsaber. The Jedi has to meditate and infuse them in the Force to tune them to themselves. Only if the crystal is properly tuned to the Jedi and noone else, it will be able to produce the lightsaber blade.

Not only do these crystals give the lightsaber's blade it's distinct shape and color, but some of them also said to modify the damage inflicted by the lightsaber through the Force that flows through the elements contained within.
This Guide has been created to provide information about Lightsaber Color Crystals, Power Crystals and Krayt Dragon Pearls.