Definitely not a Ruby, and Lapis might actually laugh if that were even suggested to her. This human, Zarya, is way to big to be a Ruby.

The hand simply gets a look before Lapis looks back up at Zarya's face. "You can call me Lapis or Lazuli if you want." One or the other is fine, but really she'll respond to her full name as well if she decides to say it. She's not exactly picky, and she's... definitely proven herself helpful.

Lapis bunches herself into the coat a little more, still forgoing shaking Zarya's hand simply because she doesn't know about that bit of human interaction.