Zamrud

Zamrud is a green, anthropomorphic dragon themed around emeralds. He's a wealthy merchant who specialises in selling jewels. He travels around from place to place trading jewels for a profit, and he occasionally goes spelunking for gems. He has a scabbard to protect himself for thieves trying to take the riches he carries. He's particularly attached to his emeralds and doesn't sell them often.

Zamrud used to be friends with Maria when they were younger, even having a crush on her at one point, but they've now gone their separate ways.