I wonder if I’m supposed to do any theorizing about the gems and their Cool Kid™ counterparts?
The resemblance between Garnet and Buck is pretty straightforward - the glasses, the cool, calm, collected, and quiet demeanor, same lips and nose - Buck even has the crease on his forehead where Garnet’s third eye would be. Thinking about what Buck sad earlier about being judged against his dad, I guess the same could be said for Garnet - she’s being judged against Rose as a leader.
Pearl and Sour Cream share a likeness, too; they swap hair and skin color, but have comparable hairstyles, similar facial features, and the same eyes. Trying to fit Sour Cream’s story about wanting to be a DJ while his dad wants him to be a fisherman is a little more tricky to fit with Pearl, unless my theory that she was some sort of elite gem back on Homeworld is true; then it would be that she had some sort of higher role to fill, but instead took the road less traveled and decided to rebel.
Aside from similar lips and sort of rounded features, Amethyst and Jenny don’t share too many physical traits, but they do seem to mirror each other in personality. I’ve got no clue how Jenny’s “I’m the bad twin, she’s the good twin” narrative could work for Amethyst, unless it’s foreshadowing us meeting another Amethyst down the line who’s not ‘wrong’ like our Amethyst is?
And poor Steven has no one, because he is genuinely one of a kind.