Top Grade China Round Natural Deep Red Precious Ruby Gemstone for Jewellery

Our personnel are generally within the spirit of “continuous improvement and excellence”, and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer’s believe in for Top Grade China Round Natural Deep Red Precious Ruby Gemstone for Jewellery, We have ISO 9001 Certification and qualified this product .over 16 years experiences in manufacturing and designing, so our products featured with best quality and competitive price. Welcome cooperation with us!
Our personnel are generally within the spirit of “continuous improvement and excellence”, and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer’s believe in for China Natural Gemstone and Natural Precious Stone price, Now we have more than 10 years experience of production and export business. We always develop and design kinds of novel solutions to meet the market demand and help the guests continuously by updating our products. We’ve been specialized manufacturer and exporter in China. Wherever you are, be sure to join us, and together we will shape a bright future in your business field!

Product Detail:

Ruby [1] , which means corundum of a red color, is a type of corundum and consists primarily of aluminum oxide (AL 2O 3) . The red color comes from chromium (CR) , mainly Cr2O3, the content is generally 0.1 ~ 3% , the highest is 4% . Containing Fe, Ti and blue said Sapphire, non-chromium CR color of other colors of corundum also collectively known as Sapphire.

Most natural rubies come from Asia (Burma, Thailand, Sri Lanka, Pakistan, China Xinjiang, China Yunnan, etc.) , Africa (Mozambique, Tanzania) , Oceania (Australia) , and America (Montana and South Carolina) . Today’s rubies are mainly produced in Mozambique.

Natural rubies are very rare and therefore very valuable, but synthetic rubies are not too difficult, so industrial rubies are synthetic. In 1999, a 67.5-carat red and blue corundum was found in Changle County, Shandong Province, China. It is called “Mandarin Duck Gem”, which is a rare miracle in the world. In 2012 several ruby deposits were found in the Karakash river bed of the Karakax County River in the Wada region of Xinjiang, the largest being 32.7 carats.

physical property：

Refractive index: 1.762 ~ 1.770, birefringence: 0.008 ~ 0.010;

Density: 4.00g/cm3; Typical absorption lines; The hardness and sapphire are side by side behind the diamond, which is the second largest hardness 9. Therefore, only the diamond can be engraved on its surface. A line can be easily drawn on the surface of the glass with one of its edges and corners (the hardness of the glass is less than 6). The cracks are relatively divergent. There are many cracks inside the common ruby, that is, the so-called “ten red and nine cracks” of ruby. It has obvious dichroism, and sometimes its color change can be seen by the naked eye from different angles. The original shape of ruby before processing is barrel and plate.

Our personnel are generally within the spirit of “continuous improvement and excellence”, and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer’s believe in for Top Grade China Round Natural Deep Red Precious Ruby Gemstone for Jewellery, We have ISO 9001 Certification and qualified this product .over 16 years experiences in manufacturing and designing, so our products featured with best quality and competitive price. Welcome cooperation with us!
Top Grade China Natural Gemstone and Natural Precious Stone price, Now we have more than 10 years experience of production and export business. We always develop and design kinds of novel solutions to meet the market demand and help the guests continuously by updating our products. We’ve been specialized manufacturer and exporter in China. Wherever you are, be sure to join us, and together we will shape a bright future in your business field!