Board Thread:News and Announcements/@comment-25390652-20151228180227/@comment-26831137-20151229002757

12 to start, he hasn't gotten a birthday ep prior so I'd guess he turned 13 sometime around the middle of Season 1 maybe around the So Many Birthdays mark (I know the ep was about the Gems ages but the relevance of birthdays could of come from a prior event or recent in Stevens life) and 14 in the Answer :3