Sapphire Ruby Gem Stone
The color of a ruby is due to the element chromium.
Sapphire ruby gem stone. The word ruby comes from ruber latin for red. 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. Diamond ruby sapphire and emerald but are there really four or just three. Thus they ll weigh more than the sizes on the chart.
Typically gem cutters cut colored gemstones with greater volume than diamonds. Ruby is the most popular red gemstone and sapphire is the most popular blue gemstone. Rubies are red and sapphires are not. It is very important in colored stone market.
It is usually said that there are four precious gemstones in the world. The density or specific gravity sg of the material will also affect the weight. You may have heard that rubies and sapphires are essentially the same type of gemstone and that the only difference is color.