Diamond is a combination of roseian quartz, blue moonian quartz, jasperian, and milkian quartz from the quartz system. It is feminine, masculine, neutral, and xenic aligned, however it is not female aligned or male aligned. It can be fluid through them four genders but it doesn't have to be.
Flag
The flag was based of the great diamond authority from Steven Universe with a black diamond in the centre to symbolise gemstones. It was made on the same day it was coined by FANDOM user RoseWatera.
The alternate flag was coined by FANDOM user Kudorix. Blue color means masculine alignment, hot pink means feminine alignment, yellow means xenic alignment and green means neutral alignment. The pastel colors (the blue and pink) mean having feminine and masculine alignment but not having it. Pastel purple and yellow colors mean still identifying as neutral/non-binary gender.
History
The term was coined on the 22nd of November 2020 by FANDOM user RoseWatera as a part of the quartz system.