Iron

Iron, a Russian gem that serves the Soviet Union military. Formerly a gem under Silver Diamond of SU:R, he found Earth during Pink Diamond's colonization of the planet. He found Russia, just starting to develop. He fell in love with it, being a part of Russian culture ever since.

Backstory
Iron was formed in a Homeworld kindergarten, right after Silver Diamond had taken over the planet. He served Silver Diamond for 2,485 years, before he went down to Earth to, what he says, "to see the sights". He found a very early developing country- Russia. He took refuge there, liking the country so much he devoted his life to it. Around 1930 he met a girl named Mariette, immediately fell in love. He was with Marietta until 1934, where he was then drafted off for a battle. He came back, a year and a half later to find Mariettes body, sitting on their front porch. Bloody with multiple gunholes in her chest. He had the box with the engagement ring in his hand... He took some time off to grieve, before then being drafted multiple other times, until he was then drafted to World War II. He had just entered battle when a loud song began to ring, his vision becoming blurry. Horns erupted violently from his head, his fingertips turning into claws. He then awoke in Beach City, by the lighthouse. Here he met Jason, a half human, half diamond hybrid. He formed a close friendship with Jason, by the kids side at all times until Jason was attempting to help Iron figure out what happened to him, as the Soviet still thought it was 1945. Jason had somewhat demonstrated a corruption beam, which then began to corrupt Iron. Iron fully corrupted a few days later, still able to somewhat keep himself straight, forcing himself not to attack anyone out of the blue. Jason then healed him, and all was good, until they went to The Quartz Authority AU, where Jason was slaughtered. Iron and Black Jason, Jason's gem half returned to SU:R, Iron absolutely distraught. The Soviet went through depression during this time period, as he'd lost so many friends in the past, his almost fiance, now he'd lost Jason, the closest friend he'd had since World War II. He had multiple thoughts about shattering himself until he was taken to the CT AU (Crystal Temple), where he found Jason, alive but- pretty mangled. BJX-3 had "fixed" Jason- somewhat reconnecting his body.. somewhat. Black Diamond arrived and fully fixed Jason. Iron is quite happy now, back to his regular self.

Quotes
"And this is why i'm not an American." -Iron, 2020