Ruby, derived from the Latin Ruber, means red. The mineral name of ruby is corundum.

Ruby belongs to the corundum group minerals, trigonal crystal system. It is red because of the chromium contained in its composition. The higher the content, the brighter the color. Rubies and emeralds, sapphires, tourmalines, etc. belong to the genus of colored gemstones. Ruby is hard in texture, and the hardness is only below that of diamond.

In the industry, pure α-type alumina powder is often sintered in a high-temperature electric furnace to produce artificial corundum, also known as fused corundum. It can withstand high temperature above 1800℃

The difference between ruby corundum and ruby is the hardness. The hardness of ruby is 9 on the Mohs scale, which is only better than diamond, but the hardness of ruby corundum is slightly lower at 8.8, Density 3.9-4.1g/cm3.

At Zhuo Fan Gems, you can buy the Pink Sapphire Ruby#2 Corundum stones at Wholesale Direct Factory prices from the China Professional Manufacturer and supplier.

Low, Low factory prices from China Wuzhou – the biggest synthetic gemstones manufacturing city in the world.

All sizes and shapes are available.

Contact us for a free Quote: info@wzzfgems.com