| Sapphire, a gemstone is the hardest and non-red | | | | on the primary hue purity. |
| variety of corundum mineral. Sapphire jewelry is | | | | Commonly, secondary hues such as violet, green, |
| very popular and it is usually worn by many | | | | and purple are also seen in the blue sapphires. |
| people, and they are largely manufactured in | | | | Purple and violet are believed to add more beauty |
| crystal boule. Other than jewelry, sapphire is also | | | | to the sapphire, while the green is believed to |
| used on other applications such as infrared optical | | | | have negative energy. Blue sapphires having 15% |
| elements, high lasting windows, watch crystals, | | | | or less than that of purple and violet are believed |
| and wafers. Sometimes, sapphire can also be | | | | to be the fine quality and blue sapphires having |
| found colorless, and the most shade used is blue. | | | | green are not the fine quality. Grey is used as the |
| Large amount of sapphire deposit are seen in | | | | mask in the blue sapphires. |
| Thailand, Madagascar, Eastern Australia, East | | | | Green and yellow sapphires are also commonly |
| Africa, U.S., and Sri Lanka. Most commonly, | | | | used, and other shades include brown, orange and |
| sapphire and ruby are found together, with any of | | | | colorless, which are used as the substitute for |
| the one gem being more abundant. Blue sapphire | | | | diamond in the jewelry. Star sapphires show the |
| occurs in various proportions of primary and | | | | star like process called as asterism. The color |
| secondary hue, different tone levels, and at | | | | change sapphire is the rarefied variety that shows |
| different saturation levels. It is measured based | | | | different colors in different light shades. |