Zircon is a mineral full of brightness and fire. Although its name probably comes from the Persian language and means "golden color", zircons actually occur in many different shades. Its refraction is almost as high as the diamond, but zircons are very fragile and therefore sensitive to pressure and shock. Zircon varieties include the reddish-brown yellow "iacinth zircon", the almost colorless straw yellow "zircon" and the blue "starlin", which is usually produced by heating other zircons. Zircons are found in Asia, Australia, South America, Africa and elsewhere. Natural zircon has nothing but a similar name in common with zirconia, which is a synthetic stone.

The artificial synthetic artificial stone, which best imitates a natural diamond. Its physical properties are similar to those of its noble model, and zirconia achieves excellent visual effects. Synonyms are "fianite", "phianite" and "CS" (zirconium oxide stabilized in cube). Since 1977, zerconies are produced in a wide range of sizes and shapes. Some zirconia have even been made with artificial inclusions. Zirconia should not be confused with zircon, which is a natural mineral.