Tanzanite is a precious gemstone known for its remarkable blue to violet-blue color. It is a relatively recent addition to the world of gemstones, having been discovered only in the late 20th ...

Gemstones News: Everything you need to know about Violet Sapphire Gemstone! - Reasonably introvert as compared to its blue cousin, the violet sapphire is a magnificent stone..

Some rare tanzanites come out of the ground blue or violet, which can usually be attributed to natural heating when the gems are still buried in the Earth. Very occasionally, a tanzanite will display ...

But it depends on how much weight they want to retain from the rough mined stone. In 1969, American Mineralogist described the gem's colours as "red-violet, deep blue, and yellow green".

Spinel also comes in red, pink and violet, Belley said. Other gems found on Baffin Island include beluga sapphires, used in the Queen's sapphire jubilee brooch, and lapis lazuli, a rock used as a ...

Green and yellow colors of spodumene, in addition to the widely known violet-pink variety kunzite, are now familiar to the trade and often submitted to gem labs. Recently, this contributor examined a ...

But it depends on how much weight they want to retain from the rough mined stone. In 1969, American Mineralogist described the gem's colours as "red-violet, deep blue, and yellow green".