Black-Blue Color Crystal

The Black-Blue Color Crystal can be earned through PvP. You can buy it from a vendor on the fleet, and it requires Valor 10 and 150,000 Credits to buy. Valor is earned through playing PvP arenas and warzones. Valor Guide & Rewards

There are also older versions of the crystal from retired schematics available on the GTN sometimes, and sometimes these crystals are dropped from certain operations bosses.

These versions of the Black-Blue crystal are available:

• Advanced Black-Blue Indestructible Crystal +41 Endurance
• Advanced Black-Blue Hawkeye Crystal +41 Power
• Advanced Black-Blue Eviscerating Crystal +41 Crit
• Advanced Black-Blue War Hero Crystal +41 Mastery