About the main stone of the jewelry Cubic zirconia is an artificial analogue of a diamond. Initially, the stone was created as a material with certain optical properties for laser equipment and got its name from the place of invention - the Lebedev Physical Institute of the Academy of Sciences (FIAN). Cubic zirconia is in no way inferior to a diamond in its appearance, it is perfectly clean, transparent and sparkles in the sun like a precious stone, allowing you to create real jewelry masterpieces. Cubic zirconia is presented in a wide range of colors and shades, so they are often used to imitate natural gems., Cubic zirconia is a synthetically made stone with facet symmetry that resembles a cube, in Russia it is known as cubic zirconia. Since this is a stone of synthetic origin, in addition to zirconium oxide, a small amount of magnesium and calcium is present in the mixture. Cubic zirconia is also used as a diamond simulator. About the precious metal Rhodium-plated silver - a coating with a thin layer of rhodium (platinum group metal) protects silver products from blackening and allows you to preserve the shine. The appearance of products with a rhodium coating is distinguished by a shinier and whiter surface. Silver - silver jewelry that has not been sprayed has a natural appearance and color. Products without coating have a moderate shine, which increases with polishing. The lack of treatment mattes the surface over time, and oxidation is permissible on it. Silver is a universal metal that almost never causes allergic reactions. Among the disadvantages of silver jewelry without coating is their darkening, which occurs over time, which, if necessary, can be eliminated by cleaning them. size 5.5-9 ?1257084178