lab grown alexandrite gemstones
Alexandrite are amazing gemstones for jewelry,because faceted gems
undergo a dramatic color change in different types of light.In warm
indoor incandescent or candle lighting,this gem is a rich purplish
red color.In bright daylight,it is blueish green.Alexandrite have
this color change because it includes chromium,which have different
absorptivity to different
light.*******************************************
Shanghai Chinese Crystal Manufacturing Co., Ltd.
http://www.ccco.cn http://www.alexandrite-gemstones.com
********************************************
Our lab created alexandrite,like natural alexandrite,is a member of
the chrysoberyl family which has the chemical composition beryllium
aluminum oxide.In other words,our lab created alexandrite gemstones
are chemically identical to alexandrite gemstones mined
naturally.Because when buying lab alexandrite,because many dealers
indiscriminately use the term for imitations(such as color-change
corundum).The imitations have very little color change effect and
the color is light baby blue in bright daylight,because they
contain less element than true lab created alexandrite.The rate of
our lab created alexandrite changing in color is 100%.In bright
daylight,our lab created alexandrite is green with slightly
blue,the color is the same with the one of the oriental emerald.In
warm indoor incandescent or candle lighting,our lab alexandrite is
red with slightly purple.The two colors in different types of light
are so beautiful that everyone will be stuck on them as soon as he
saw our lab created alexandrite.Our alexandrite rough is cut in
HongKong,where the great care is taken to produce a facted gems
which offers a full color change as one moves between warm indoor
lighting to the full specrum of natural sunlight.Our lab created
alexandrite gemstones have higher perfection than is nsually seen
in natural stones.We are able to offer them at a small fraction of
the cost of comparable natural stones.We are proud of our created
alexandrite and believe it to be the best laboratory grown
alexandrite currently on the market.
