God I love Navy, not only is she one of the smartest rubies, she's one of the smartest gems shown yet. Because she used her appearence and put on a facade only to deceive Steven, Glowstick Lazuli and that green gremlin.
So let's see what she did in Room for Ruby.
1) Crash landed on Earth conveniently in front of the Temple
2) Faces the people who made her and her friends stay on space with no hope of ever returning
3) She quickly realizes she won't be able to out-brute them
4) And right then and there she improvises a plan to get her enemies to let their guard down so she can steal her ship back and save her squad.
5) Profit
In one episode she managed to accomplish something both Peridot and Jasper failed to do in two seasons: She escaped from Earth. I REALLY hope she becomes a reacurring character.
(Btw I haven't enjoyed an episode this much since Know Your Fusion so I'm really happy)