The specialized production of Roman glass relies on the application of high heat to fuse two primary ingredients; silica and soda. The centuries of contact with the soil provide a uniquely iridescent patina that makes it a perfect material for adorning jewelry. The featured Roman Glass jewelry is 925 sterling silver set with authentic shards of this beautiful antique glass. Due to the unique makeup of the antique pieces of glass, colors will vary. No two pieces of glass are alike. Made in Israel. 3/4" x 1". Chain Included.