Blue Sapphire Corundum Value

Sapphire ceylon untreated blue si vvs type ii 3 000 to 5 500 per carat.

Blue sapphire corundum value.

Although hue counts the closer to a pure blue the better saturation is more important. Corundum is best known for its gem varieties ruby and sapphire. The word sapphire comes from the greek sappheiros meaning blue stone but corundum can come in every colour depending on the impurities in the material. Gem quality corundum is often found in placer deposits.

The color of a ruby is due to the element chromium. However the term sapphire encompasses all other gem varieties and colors of corundum as well except ruby which is the red variety of corundum which has its own name. While ruby is the red form of the mineral corundum sapphire is defined as any other color variety of corundum. Red corundum is known as ruby and all other colored corundum including colorless or white sapphire as it is known in the trade is sapphire although blue is the most well known.

Another famous variety of corundum is ruby. Colors of sapphire sapphire is generally known as a blue gemstone but surprisingly it comes in a wide range of colors and quality variations. Inclusions in general burmese thai and australian blue sapphires contain crystals of plagioclase feldspars orthoclase niobite columbite calcite monazite zircon apatite fergusonite and thorite. Those varieties are also considered sapphires and are sometimes called fancy sapphires.

Sapphires exist in a variety of colors. A ruby is a pink to blood red coloured gemstone a variety of the mineral corundum aluminium oxide other varieties of gem quality corundum are called sapphires ruby is one of the traditional cardinal gems together with amethyst sapphire emerald and diamond. Color is the most important element in estimating the value of blue sapphire. Non gem corundum is abundant throughout the world.

Ruby is the red variety and sapphire is the variety that encompasses all other colors although the most popular and valued color of sapphire is blue. Sapphires are generally categorized as blue sapphires any sapphire with a predominantly blue hue or fancy sapphires sapphires of any other color. Many sapphires on the market are actually grayish. Top sapphires reach vivid saturation.

In the gem industry sapphire without any color prefix such as blue sapphire refers to the blue variety of the mineral corundum. So if ruby is red and sapphire is blue what about the orange yellow green and violet corundum as well as all the other shades in between. The word ruby comes from ruber latin for red.