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One of the most prized and exotic gemstones is the variety of chrysoberyl known as alexandrite. It is renowned for its dramatic color change from purplish-red under incandescent light to bluish-green in daylight or fluorescent light.

One of the most prized and exotic gemstones is the variety of chrysoberyl known as alexandrite. It is renowned for its dramatic color change from purplish-red under incandescent light to bluish-green in daylight or fluorescent light.

Single Alexandrite. Top precision cutting and proportions with excellent clarity and an exceptional color change. Unlike alexandrites from other deposits, the best Brazilian alexandrites are blue in daylight. Slightly darker stones like this one are considered to be more valuable because of their strong color change. A lighter toned stone would never show such a prominent change.

Single Alexandrite. Top precision cutting and proportions with excellent clarity and an exceptional color change. Unlike alexandrites from other deposits, the best Brazilian alexandrites are blue in daylight. Slightly darker stones like this one are considered to be more valuable because of their strong color change. A lighter toned stone would never show such a prominent change.

Alexandrite This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the Tokovaya River in the Urals. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

Alexandrite This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the Tokovaya River in the Urals. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

GREEN ALEXANDRITE. If you want TWO engagement rings in one then choose alexandrite which is green in the daylight and red at night http://www.fashionaccessoryshop.com/engagement-and-wedding-ideas.html

GREEN ALEXANDRITE. If you want TWO engagement rings in one then choose alexandrite which is green in the daylight and red at night http://www.fashionaccessoryshop.com/engagement-and-wedding-ideas.html

Alexandrite. Click Reference Library at the bottom to look at more stones. Wealth of information if you're wanting to start a collection of gemstones.

Alexandrite. Click Reference Library at the bottom to look at more stones. Wealth of information if you're wanting to start a collection of gemstones.

Brazilian Alexandrite under candlelight. More @ www.multicolour.com and #gemstones #alexandrite

Brazilian Alexandrite under candlelight. More @ www.multicolour.com and #gemstones #alexandrite

A group of alexandrite gemstones from different locations: Brazil, Africa, and India.  Alexandrite is the must-have for the jewelry and gemstones connoisseur, featuring a color change from blue-green in daylight and purplish-red under incandescent light.

A group of alexandrite gemstones from different locations: Brazil, Africa, and India. Alexandrite is the must-have for the jewelry and gemstones connoisseur, featuring a color change from blue-green in daylight and purplish-red under incandescent light.

Alexandrite by Omi Gems, 3.18 carats of intense color change!  via Danielle Signor

Alexandrite by Omi Gems, 3.18 carats of intense color change! via Danielle Signor

Alexandrite: ALEXANDRITE is more rare than diamond. It is one of only a couple color change gemstones! This means it actually changes color in different light! It is found in Russia, Brazil, India, and a few other locations. Alexandrite that is found in different places have different color's and color changes. Originally found in Russia and supposibly named after Alexander the Great, Russian. Alex from Russia changes from from blue/green to purple!

Alexandrite: ALEXANDRITE is more rare than diamond. It is one of only a couple color change gemstones! This means it actually changes color in different light! It is found in Russia, Brazil, India, and a few other locations. Alexandrite that is found in different places have different color's and color changes. Originally found in Russia and supposibly named after Alexander the Great, Russian. Alex from Russia changes from from blue/green to purple!

Alexandrite under mixed lighting  http://www.alexandrite.net/chapters/chapter5/index.html

Alexandrite under mixed lighting http://www.alexandrite.net/chapters/chapter5/index.html

Indian Alexandrite under sunlight. , Superior brilliance, and excellent clarity and although the color change is not strong, alexandrites from Andrapradesh are well known for their beautiful daylight color.   More @ www.multicolour.com and #gemstones #alexandrite

Indian Alexandrite under sunlight. , Superior brilliance, and excellent clarity and although the color change is not strong, alexandrites from Andrapradesh are well known for their beautiful daylight color. More @ www.multicolour.com and #gemstones #alexandrite

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

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