Rebel Gems: Emerald Morphology (partial)

A beta morphology sheet on RG emeralds, based on what we've seen in the show so far.
Emeralds are a variety of beryl that are tall and slender, with a green skin tone and darker green hair. Like all beryls, emeralds bear insectoid traits such as forehead ocelli and feeler-like sensory organs (which are often concealed under the hair). However, unlike the smaller, closely-related aquamarine, emeralds possess a fully-developed external nose. Humans have compared the appearance of an emerald to that of a sort of "human mantis".

Steven Universe ( c ) Rebecca Sugar