What class of gem Ruby is
Let’s think here. Every gem has a class and a purpose, but what would Ruby do?

Ruby has fire powers and is incredibly strong for her size. Stating the obvious, right? But what would this be used for? She clearly is no warrior, she’s too small. She’s not a technician either.
What have we seen a lot of on Earth? Gem buildings. Who would you need to build buildings? Construction workers. Ruby is a gem in a class that is built for construction. Her extreme strength could be used to move large pieces of buildings to another place and her fire power could be for welding and melting metal. This could be why she is able to heat things up with just her hands, being able to weld metal together with no tools could be extremely useful for building a building.
This could also be why she has a glove for a weapon. Of course, she doesn’t need it, but it could still be representation for a welding glove. It even looks like one!

So, to conclude, I think it’s a possibility that Ruby could be a gem built for construction!
I can DEFINITELY see the resemblance to a welding glove. It’s great that she also acts like an angry construction worker.






