Bismuth is extremely similar to the unknown gem that poofed Lapis Lazuli during the war in "Same Old World". Bismuth was poofed roughly 5,300 years prior to the show, which is around the start of the Bronze Age. Bismuth is the first non-corrupted gem to be poofed by Steven.

Is Bismuth a boy or girl?

Bismuth is a lesbian character from Steven Universe.

Who is Bismuth crush?

Bismuth is confirmed to have a crush on Pearl, hinted at through Bismuth's flirtatiousness toward Pearl in the episode with her name.