Color-change Alexandrite and Garnet


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Gem-related Field

Let's Talk About Alexandrites
Alexandrite is a chrysoberyl mineral made up of aluminum oxide, beryllium, and trace amounts of chromium. It forms in volcanoes as a result of lava flows.

This beautiful stone with a distinctive property can be found in Russia, Brazil, Madagascar, or Burma. The best alexandrite specimens change color depending on the light to which they are exposed. When exposed to light, alexandrite appears green or blue. It turns violet or even purple when exposed to artificial light. As a result, this stunning gem is said to be emerald by day and ruby at night.

This stone also displays different colors depending on the angle of the viewer. This phenomenon is called pleochroism. This refers to the ability to absorb light wavelengths differently depending on their angle.⁠

Alexandrite has a hardness of roughly 8.5 on the Mohs scale, which is used to determine mineral hardness. As a result, it is a strong, long-lasting, and expensive stone. The finest alexandrites can be as valuable as diamonds.

The most stunning alexandrites were discovered in Russian deposits, which are now depleted.
2+ cts colour-change garnets
Color-Change Garnet
A multitude of other color change combinations are also possible. Color shift garnet should be examined under a range of lighting situations, including early morning sunshine, late afternoon daylight, fluorescent light, and incandescent light or candlelight, to fully understand its full range.

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A Type II Stone
The most stunning alexandrites were discovered in Russian deposits, which are now depleted.

Alexandrite is type II, which means it may include visible inclusions of liquid or solid matter, especially if it weighs more than one carat. These inclusions, however, do not impair the stone's beauty or quality, but they can affect its value.
1.99 Alexandrite from Brazil (colour-change)
What Is the Garnet Color Change Value?
Prices range from $500 a carat for good colors with some inclusions, to $2,000 to $7,000 for clean larger stones with top color. color change garnet is the rarest and most valuable of the garnets and is one of the rarest of all colored gemstones.

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Benjamin Poudevigne
Social Media Manager at GemMatrix
With over ten years of marketing experience, I finally decided to settle down in Bangkok to work in an area that I have always been interested in: the gemstones industry. I'm still learning how the market works on a daily basis, and I enjoy sharing my experience with those who are interested in learning more about gems in general.