However don t pay for an alexandrite when you re not getting one. The finest quality stones will change color from traffic light green to traffic light red. 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. What this element does is that it readily accepts all the light which hits the gemstone. The alexandrite s effect of changing color is often caused by the traces of chromium which is found in the gemstones.
Each stone is unique and exhibits different color changes. It was first discovered in an emerald mine and mistakenly identified as an emerald due to its green color. This light would then be absorbed right into the spectrum blue and yellow sections. When grading an alexandrite s color change gemologists consider the stone s color in natural sunlight as the baseline. Alexandrite is believed to be named after tsar alexander ii of russia.
How does alexandrite change color. Due to the fact that the band of the alexandrite is at 580nm the gemstone would quickly change color. This color changing gem has the incredible ability to change from emerald green in the daylight to red at night. The color changing property of alexandrite is known as alexandrite effect and is a result of chromium traces found in the gemstone. It s also been seen to show blue tones in natural light and purple coloring.
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Alexandrite is a color change variety chrysoberyl and is considered one of the rarest gemstones in the world. For a good grade of that size the cost goes up to 60 000 per carat. Color change chrysoberyls are uncommon and also command hefty prices. 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. The chromium traces cause strong light absorption in the yellow and blue parts of the spectrum.Alexandrites are stunning gemstones that change from reddish purple to greenish with any number of color variations. Sources of alexandrite include russia s ural mountains. Chemically alexandrite can be differentiated from normal chrysoberyl by the presence of chromium. Alexandrite is defined by its color change and only chrysoberyl that displays a distinct change of color should be referred. For a true alexandrite a stone with a slight green red color change can cost 6 000 per carat in that size.
Alexandrite a variety of chrysoberyl claims the title of most expensive color changing gemstone. 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. They re a great addition to any gemstone collection. However other types of lights can produce other colors as shown below. Alexandrite has been titled as the most expensive color changing gemstone.
With these very distinct color changes that are hard to ignore adds up to the reason why it is the most sought after gemstone. With these very distinct color changes that are hard to ignore adds up to the reason why it is the most sought after gemstone. Alexandrite a variety of chrysoberyl claims the title of most expensive color changing gemstone. Alexandrites are stunning gemstones that change from reddish purple to greenish with any number of color variations. Alexandrite is a color change variety chrysoberyl and is considered one of the rarest gemstones in the world.
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Alexandrite has been titled as the most expensive color changing gemstone. How does alexandrite change color. Each stone is unique and exhibits different color changes. However don t pay for an alexandrite when you re not getting one.
