About the main stone of the decoration 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 - 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 are presented in a wide range of colors and shades, so they are often used to imitate natural gems., Corundum is the hardest precious mineral after diamond, known since ancient times. It is mainly blue and red in shades, very rarely there are transparent corundums that look like diamonds. The saturated shades of the stone are obtained due to X-ray irradiation. Under noticeable long-term loads at high temperatures, corundums can lose color. Not everyone knows that ruby ??and sapphire are also varieties of corundum. Ruby is a beautiful gemstone, second only to diamond in hardness. Ruby jewelry is considered one of the most expensive in the world, almost all royal and imperial regalia are decorated with these luxurious stones. Resembling frozen drops of blood, ruby ??is considered a warrior's stone, so it suits strong-willed people. size: 16,5-19,5 ?1956061850