Sapphire Ruby Gem Stone

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. Ruby is the most valuable variety of the corundum mineral species which also includes sapphire. The density or specific gravity sg of the material will also affect the weight.

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It is usually said that there are four precious gemstones in the world.

Sapphire ruby gem stone.

The pie chart on this page shows the share of colored stone imports on a dollar value basis that went to the categories of sapphire ruby emerald and all other gemstone varieties during the 2015 calendar year. Rubies are red and sapphires are not. Thus they ll weigh more than the sizes on the chart. It is very important in colored stone market.

The color of a ruby is due to the element chromium. Typically gem cutters cut colored gemstones with greater volume than diamonds. You may have heard that rubies and sapphires are essentially the same type of gemstone and that the only difference is color. Diamond ruby sapphire and emerald but are there really four or just three.

The word ruby comes from ruber latin for red. For example a 6 5 mm round diamond sapphire and opal all cut in the same proportions will all weigh different. Ruby is the most popular red gemstone and sapphire is the most popular blue gemstone.

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