I've only started watching Steven Universe from the last episode of Season 2 but in the episode Hit the Diamond I noticed that each of the Rubies that arrived looking for Jasper appear to have a dominate personality trait. For instance, the one with the Ruby in her eye seems to be the more aggressive one while another one appears to be more of a ditz/scatterbrain.
When I learned that Garnet is actually a Gem Fusion, I began thinking that Ruby's personality trait has something to do with her and Sapphire's feelings for one another: they spent most of the match flirting with one another and it was their running into each other's arms (more Sapphire running into a stationary Ruby) which blew their cover. However, when Sapphire's Ruby was trying to convince the other Rubies not to search the barn she seems awfully nervous so maybe this was her true personality trait and it's just covered up when she's with Sapphire (love conquers fear).
So I am wondering, do all the Rubies (including Sapphire's) have a dominant personality trait? If so what are they?