These natural Green/Red Alexandrites originate from Tanzania and their total weight is about 1 carats. The measurements are 5.87mm x 3.04mm x 1.94mm (length x width x depth).These gemstones are calibrated to fit 6 X 3 mm jewelry settings. The shape/cut-style of these Alexandrites is Marquise Facet and has been graded VS clarity. These 1.2ctw Alexandrite gems are 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 titanium, but alexandrite is also colored by chromium, which gives it the emerald green hue in daylight.
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