Finest quality Cubic Zirconium Jewelry set in Sterling Silver. Cubic Zirconium, or CZ, is very popular and widely known and used in the jewelry industry. Cubic Zirconium which was invented by the Russians in 1937, is a top quality man made gem. It is quite remarkable the actual process of manufacturing of rough CZ, which is melted at extremely high temperature and then cooled to form flawless diamonds. This Cubic Zirconium is then custom cut, polished and hand set just like diamonds. Silver is a precious and soft metal versus rhodium is a hard durable metal. Sterling silver jewelry has a tendency to tarnish therefore all jewelry is plated in rhodium, which is a resistance from tarnishing and scratching. Rhodium also gives jewelry a high quality platinum look just like the real. Most items enlarged to show detail.