I have the following crystals on the Jedi Covenant Server, Republic Side.

These came out during the plague event after release. I spent quite a bit of time collecting these and now am not playing the game and wonder what they are worth.

(1) Advanced Black-Green War Hero's Crystal - 41 Expertise
(2) Advanced Black-Green Eviscerating Crystal - 41 Critical
(2) Advanced Black-Green Indestructible Crystal - 41 Endurance
(1) Advanced Black-Green Hawkeye Crystal - 41 Power

Or on Empire Side.

Also have a few million credits. A rare Rakata pet and some new Cartel Items.