Alexandrite
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Alexandrite is a gem variety of the mineral chrysoberyl discovered in 1830 in Czarist Russia. Since the old Russian imperial colors are red and green, it was named after Czar Alexander II on the occasion of his coming of age. Material with a certificate of Russian origin is still particularly valued by the trade. Some alexandrite is found in Sri Lanka, Zimbabwe and Brazil, but very little shows a dramatic color change.
Alexandrites are among the rarest, most spectacular and expensive gemstones in the world.

alexandrites are among the rarest, most spectacular and expensive natural color-change gemstones in the world

Alexandrite

Alexandrite from Lake Manyara, Tanzania "Single untwinned Alexandrite, gemmy with good crystal form.

Alexandrite

Alexandrite ~ "Its colour by daylight was a fine sap-green with a trace of red, while in candle-light it appeared a full columbine-red. This is my birthstone :)

A Cat's Eye Alexandrite and Diamond Ring

Cat's Eye Alexandrite and Diamond Ring - chatoyancy or the "cat's-eye effect"

Alexandrite specimen

Alexandrite: A small stone rarely larger than a pinky nail. One of the rarest gemstones in the world! Green in the daylight and red in artificial light.

natural alexandrite

Alexandrite loose stone This particular stone is so beautiful because it changes color depending on whether or not you are in artificial light or in natural light. The lab-created alexandrite is more purple but still very beautiful!

The spectacular 17.08-carat Whitney Alexandrite appears a raspberry color under incandescent light and a teal (green-blue) color when illuminated by daylight. With its exceptional size, clarity, and amazing color change, this gem is one of the finest known alexandrites from the Hematita Mine in Minas Gerais, Brazil.

carat very rare color change Alexandrite.Whitney Alexandrite from the National Gem Collection

WORLD'S RAREST GEMSTONES. A variety of Chrysoberyl, alexandrite belongs to the same family of gemstones as emerald. Alexandrite is pleochroic, which means it changes color depending on the angle at which it is viewed (see picture) .It's color-changing properties (and its scarcity relative to diamond) is due to an exceedingly rare combination of minerals that includes titanium, iron and chromium.

A variety of Chrysoberyl, alexandrite is pleochroic, which means it changes color depending on the angle at which it is viewed. Its color-changing property is due to an exceedingly rare combination of minerals that includes titanium, iron and chromium.

Alexandrite

Alexandrite Gemstone Alexandrite is said to help balance one’s emotional state, to provide confidence, to increase self-esteem and to help bring about change.

Alexandrite

V-twin Alexandrite crystal, gemmy with good crystal form. Chunky floater crystal with no damage or points of attachment. Purple and green color.

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