A Neptune Dilemma is a series by Odrey.
(about 16 years after canon)
Two young gems, Aragonite (who's supposed to be a Homeworld military leader in the future), and Bismuth (a gem made via experiments, this Bismuth failed) have broken many of the Homeworld rules and if they don't get out fast, they'll get their gems broken. They go to the only planet which Homeworld hasn't conquered, Neptune. But it's not as abandoned as it seems...
Tavernier Blue Diamond (mentioned)
|No.||Title Card||Title||Description||Release Date|
|1||Pilot||Aragonite and Bismuth overhear the fate that they have in store, and flee.||1/15/16|
|2||Running Away||Bismuth and Aragonite steal a spacecraft, fly it to Neptune, and crash.||1/16/16|
|3||The Expedition||Aragonite and Bismuth explore on Neptune.||1/21/16|