Semi Precious Synthetic Rough Blood Rubies Corundum Gemstone

We are offering semi precious synthetic rough blood rubies corundum gemstone.
Synthetic corundum
in 1902, auguste verneuil, a french chemist, developed a method known as flame fusion to create synthetic ruby. It was the beginning of created gemstones in the laboratory in human history.
The method “flame fusion” also called “verneuil’s method”. This method can be used for the creation of other gems materials, including sapphire, star sapphire, spinel, rutile, and strontium titanate.
Traditional flame fusion was being improved for many times in its development. Carefully control the temperature of crystal cooling or the speed of cooling, different quality synthetic gemstone materials are produced.
Corundum is formed of aluminum oxide (al2o3）.the color of the chromium-doped corundum is red, generally called ruby. The color is blue or colorless, called blue spphire. Corundum rich in color, almost includes the red, orange, yellow, green, cyan, blue, purple of the visible spectrum. Pure corundum is colorless, sometimes it will in different colors when presented with different trace elements , polished surface with a bright vitreous luster or sub-adamantine luster.
Why choose us?
1.we are a supplier with more than 15 years factory management experience.
2.oemodm service
3.professional packaging which will protect your gemstones from being demaged.
4.1 day delivery for in stock gemstones.
5.alibaba logistic. Low shipping charges. Tracking your packaging anytime, anywhere.