Brass wire wrapped pendant: amethyst gemstone. This wire wrapped gemstone is simple, but so beautiful. I used a very natural-looking piece of amethyst stone that has swirls of purple and green running through it. I then twisted 20 gauge brass wire into a pattern around it so that I could frame the stone's beauty. As someone born in February, I'm a big fan of amethysts -- my birthstone -- and wanted to make something simple that showed off the stone. The wire is non-tarnish and the stone is about 10mm.