This is a 22k solid gold ring with a nice diamond-shaped gem silica semi-faceted cabochon. The design is a simple but pretty with a prong setting and twisted wire around the band.
The gem silica in this ring is from Peru. It has a beautiful light powder blue color and is pure translucent top-grade material.
The ring at its widest point is approx. 7/16” wide (at the front – top to bottom) and the band is just over 1/8” wide at the back. The stone sits fairly high in the setting (see side view photo).
Learn more about Gem Silica at this link.