We also use in some non-ornamental applications. The second hardest mineral, after diamond at 10. Because of the remarkable hardness of sapphires.ĩ on the Mohs scale. They also can be synthetics for industrial or decorative purposes in large crystal boules. This variety in color is due to trace amounts of elements such as iron, titanium, chromium, copper, or magnesium.Ĭommonly, we cut and polish natural color change sapphires as gemstones and worn it in jewelry. Pink colored corundum may be either classified as ruby or sapphire depending on locale. As a red color corundum is a ruby, another corundum variety. The only color which sapphire cannot be is red. It is typically blue, but natural fancy sapphires also occur in yellow, purple, orange, and green colors, parti sapphires show two or more colors. Are color change lab created white sapphires durable?.Are color change lab created sapphires worth anything?.How can you tell if a color change sapphire is lab created?.What color of sapphire is most expensive?.

Colour of sapphire