This is an 18k solid gold ring with a nice purple-blue spinel. The design is based on an ancient Etruscan style with intricate twisted wire details.
This spinel comes from Tanzania and is completely natural. It has a really nice ‘dusty’ purple-blue color. There are a few fairly significant imperfections (veils) below the surface that are visible under magnification.
The ring at its widest point is approx. 3/8” wide (at the front) and the band is approx. 3/16” wide at the back.
Learn more about spinel at this link.