This is a lovely example of the fresh radiance of emerald from Colombia. It is set in 9Kt Yellow Gold and sits on a sterling silver band, finished in rhodium the same as for white gold.
The band was inspired by a museum piece dated from 1790, France. So we know it as the French Band. This is one of many iterations where it may appear chunky or super fine, silver or gold or platinum, set with tiny diamonds or as a simple band. Always looks great and very popular in this new look.