This natural Green/Red Alexandrite originates from Tanzania and its weight is about 0.3 carats. The measurements are 4.53mm x 3.1mm x 2.41mm (length x width x depth). The shape/cut-style of this Alexandrite is Oval Facet and has been graded VS clarity. This 0.25ct Alexandrite gem is available to order and can be shipped anywhere in the world. Gemstone Certification can also be provided as an optional service.
Alexandrite is one of the rarest of all colored gemstones and is famed for its color change from green in daylight to red under incandescent light. Fine faceted alexandrite over 1 carat is more valuable than sapphire, ruby or emerald.
Alexandrite is a variety of chrysoberyl, with an excellent hardness of 8.5 on the Mohs scale, placing it right behind sapphire and ruby. Alexandrite is rare because of its chemical composition. Chrysoberyl is colored by traces iron and titatnium, but alexandrite is also colored by chromium, which gives it the emerald green hue in daylight.
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