Cyan Color Crystal

The Cyan 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 Cyan crystal are available:

• Eternal Cyan Indestructible Crystal +41 Endurance
• Eternal Cyan Hawkeye Crystal +41 Power
• Eternal Cyan 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 Cyan crystals for sale.)

Cyan Crystal Lore

Traditionally, in Old Republic Lore, Cyan color crystals are fairly uncommon, and don't seem to really exist outside of anything except Star Wars: The Old Republic and Knights of the Old Republic II. The most well-known blue-green lightsaber crystal in the Old Republic era would be the Mantle of the Force crystal, an expensive crystal from Knights of the Old Republic I. The Mantle of the Force was assembled by Suvam Tan from pieces found in the ruins of Exar Kun's temples on the fourth moon orbiting Yavin. Additionally, the Mantle seems to almost act as a focusing tool for Force- sensitive individuals, leading to the idea that the original artifact may once have been a powerful tool of the Sith, or perhaps something they took with them when the dark Jedi originally split from the Order. The Mantle of the Force has been described as being quite a few different colors including cyan, turquoise, aqua, and blue-silver.