Alexandrite is the variety of chrysoberyl beal 2 o 4 which changes color from green or blue green in daylight to red purple red or raspberry red under incandescent light. Alexandrite is a rare gemstone that belongs to the family of mineral called chrysoberyl.
When the light source changes from daylight to incandescent light the gem s color changes from bluish green to reddish purple.
Alexandrite gemstone that changes color. Often described by gem aficionados as emerald by day ruby by night alexandrite is the very rare color change variety of the mineral chrysoberyl. According to gia alexandrite s finest dual colors are a vivid grass green in daylight and fluorescent light and an intense raspberry red in incandescent light. However the modern june birthstone is so rare and expensive few people have seen a natural alexandrite.
It is sought after due to its color changing property. Alexandrite is a color change variety chrysoberyl and is considered one of the rarest gemstones in the world. This gemstone has been described as an emerald by day and a ruby by night because its color turns bluish green in daylight and changes to purplish red when placed under luminescent light.
The finest quality stones will change color from traffic light green to traffic light red. Alexandrites are actual color changing stones not to be confused with the more common mood rings. Color change alexandrite rare stones have the nature of.
Emerald by day ruby by night alexandrite is well known for displaying one of the most remarkable color changes in the gem world green in sunlight and red in incandescent light. Alexandrite is believed to be named after tsar alexander ii of russia. For a true alexandrite a stone with a slight green red color change can cost 6 000 per carat in that size.
Alexandrites display a spectrum of colors usually changing from green to blue in the daytime to pink purple or red at night. For a good grade of that size the cost goes up to 60 000 per carat. For just a good grade of this so called alexandrite you might pay 2 500 4 500 in the size range of 1 2 carats.
Alexandritehas been titled as the most expensive color changing gemstone. Published on feb 6 2015 we want to sell the stone natural russian alexandrite color change you can see the change in the dominant color. Originally discovered in russia s ural mountains in the 1830s it s now found in sri lanka east africa and brazil but fine material is exceptionally rare and valuable.
It was first discovered in an emerald mine and mistakenly identified as an emerald due to its green color. Its color changes range from bluish mossy green in sunlight and in incandescent lighting it has a prominent red shade with a tinge of raspberry. Alexandrite a variety of chrysoberyl claims the title of most expensive color changing gemstone.
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