Purple Color Crystal

The Purple Color Crystal can be earned through the Eternal Championship. It costs 2 Eternal Championship Trophies, which you can earn by completing the Solo version of the tournement's weeklies. You can earn 6 tokens every week per character. Eternal Championship Guide

These versions of the Purple crystal are available:

• Eternal Purple Indestructible Crystal +41 Endurance
• Eternal Purple Hawkeye Crystal +41 Power
• Eternal Purple Eviscerating Crystal +41 Crit

(There may also be other versions of these crystals available on the GTN from players who have the crafting schematic. At the time of making this database I could not find a +41 Mastery crystal available to buy from other players, but I was able to find other Purple crystals for sale.)

Purple Crystal Lore

Traditionally, in Old Republic lore, Purple (sometime called violet) lightsaber crystals were fairly uncommon, and mostly wield by Sith as an alternative to a red lightsaber crystal. In Knights of the Old Republic, characters could find purple lightsaber crytals in the tomb of Tulak Hord, in Tatooine's dune sea, and the remains of a Dark Jedi on Kashyyyk.

The most well-known purple lightsaber wielder in the Old Republic era was Darth Revan, and the most well known in newer lore is Mace Windu. The idea of a purple lightsaber was actually created by the actor who played Mace Windu in Attack of the Clones, when he asked if you could wield a purple lightsaber during the final battle of the movie, so his character would be more visible. Mace Windu's purple saber is said to be created by a purple Amethyst crystal. In the Old Republic, purple crystals are less common than red crystals, but seem to be the second-most-used type of crystal for Sith.