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Lumenite™ is a monocrystal of strontium aluminate
Czochralski pulling ensures that these stones have perfect crystal structure
Overall it's much
When the SDI was finally wound down there was a lot of this stuff lying around which was surplused off and often made it into the hands of faceters
but this material was grown purely for use in the gem trade
Fantasy Cut Laser Alexandrite Stones, Lab Created Red Glow Alexandrite Cut and Size:Oval, 17.5x13.5mm, ~14.2ct Lumenite™ is a monocrystal ofThese laser alexandrites are fantasy cut with some concave facets. They also have bubble inclusions typical of some lab grown alexandrite the concave facets make them much less visible. These are genuine, lab created alexandrite gems faceted from crystals grown for lasers. Note the camera can't capture the true color! There is a red glow to these stones thanks to their strong fluorescence but it doesn't dominate like it does in the photos. These gems
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