Apparently, in the past sapphires were believed to be a medicinal gem that could cure stomachache, colic, and other complaints.* So here we have an apothecary who has mixed up a sapphire tincture for a patient!

Today I'm posting the pencil sketch. (I normally do the sketch in pencil, then ink it digitally for coloring.)

*http://academic.emporia.edu/abersusa/go340/student...