Complete guide about Sapphire gemstone:

The word synthetic sapphire comes from the Latin term sapphirus and refers to a bluish gem that belongs to the corundum family. It is one of the most relevant and valuable gemstones on the planet, along with diamonds, rubies and emeralds. The formula of sapphire in relation to its chemical composition is Al2O3, since sapphire is a combination of iron, aluminum and titanium oxides. This last element is responsible for the traditional bluish tone of sapphire. Anyway there are other shades of this stone: pink, yellow and green.

If compare white sapphire vs cubic zirconia, then value of white sapphire is more.

Sapphire is said to be the blue sister of the ruby , both share characteristics as material with which they have been composed, the mineral corundum, red is what is known as ruby ​​and blue as sapphire. Corundum is the second hardest gemstone, the first is the diamond. There are many varieties of sapphires, those of Kashmir and those of Burmese are of an intense blue color and are very difficult to find in the market; the most common are those of Sri Lanka and Madagascar and can be found in a wide range of colors from dark blue to sky blue. According to their colors are known as white sapphire, sapphire water, oriental sapphire and faux sapphire.

Different type of sapphire different by their colour

Purple sapphires from precious gemstones supplier are considered less valuable because of that inaccuracy in their color. This hue is given by the impurities that iron and titanium have and are not much appreciated. It should be noted that the economic value of a sapphire stone is given by the intensity of its colors; the darker it is the more expensive, especially if it is blue.

The colors of the loose sapphire stones can be better perceived when facing a fluorescent light or in broad daylight, when it is incandescent these stones are turned off. In order to work on the sapphire, they are subjected to a heat treatment through which the stones are heated before being cut at about 1800 degrees Celsius. This exposure to color intensifies their colors and makes them more expensive.

As for the chemical properties of sapphire, it can be said that it does not suffer from the attack of hydracids, with the exception of hydrofluoric acid. On the other hand, instead, you are attacked by perchloric acid, hexafluorosilicic acid, its acid oxide and, hot, also royal water.

Yellow gemstones can be found in deposits of bauxite, rutile and hematite. The most important international producers are in the African continent, although there are also deposits in South America. On the other hand, there are sapphires in the Indian area of Kashmir, in the Australian territory of Central Queensland, in Sri Lanka and in Siam. The use of sapphire is associated with jewelry and certain tools that use lasers. On the other hand, there are synthetic sapphires that receive their color from the supply of titanium and chromium. These artificial sapphires are manufactured, since 1902, by the process known as Verneuil.