Amethyst: Iron’s Purple Touch. Amethyst, a type of quartz, ... While many associate sapphires with the color blue, these gems ...

“Iolite is a beautiful purple-blue gemstone that is often associated with the third eye chakra, the site of our pineal gland,” Salzer says.

As a result, purple and magenta are known as "nonspectral" colors, because they don't really exist as actual electromagnetic ...

Tanzanite was discovered in the 20th century. This gemstone can be blue and violet, with its blue variety being considered the most valuable. It symbolizes intuition and purity. Zircon is the more ...

The stone appears green or blue in daylight or fluorescent light. In incandescent light, it is red or purple. The gem takes its name from Emperor Alexander II of Russia , the Geological Institute ...

In 2016, jeweler Olivia Young of Ouroboros sold a red spinel ring for £6,000 ($7,700). Last year, the client’s insurance company paid out £30,000 ($38,400) to replace it. Experts say that this ...