China Manufacturer for The First Quality Cushion Cut Natural Semi Precious natural sapphire

The buyer pleasure is our primary concentrate on. We uphold a consistent level of professionalism, excellent, credibility and service for China Manufacturer for The First Quality Cushion Cut Natural Semi Precious natural sapphire, If you’re searching for a top quality, fast delivery, greatest following company and superior value supplier in China for long-term business partnership, we’re going to be your best choice.
The buyer pleasure is our primary concentrate on. We uphold a consistent level of professionalism, excellent, credibility and service for China Natural Stone and natural sapphire price, By continuous innovation, we will offer you with more valuable items and services, and also make a contribution for the development of the automobile industry at home and abroad. Both domestic and foreign merchants are strongly welcomed to join us to grow together.

Short Description:

Gem bound all kinds of gem grade corundum beyond ruby are called sapphire. Sapphire mineral name for corundum, corundum group minerals. Actually the gem grade corundum in nature divides gules outside say ruby, all sorts of color is like blue, light blue, green, yellow, gray, colorless etc. of the rest, all call sapphire, or call colour sapphire, add color name before sapphire namely, be like pink sapphire.

Sapphire’s biggest characteristic is color uneven, visible parallel hexagonal cylinder arrangement, different depth of straight ribbon and growth grain. Cluster wafer double crystal development, common louver window type double crystal grain. The cleavage is mostly along the twin plane. Dichromatic sex is strong, the sapphire of world different producing area divides afore-mentioned common besides characteristic, also because producing area differs each distinctive feature.

Processing :

Australian blue gems that are too black or dark blue become lighter under high temperatures. Sri Lanka’s white corundum turns blue, while pale yellow gems can change to a deeper, warmer yellow. In a word, there are 5 aspects of application:

A: Reduces the blue color of dark sapphires (under oxidation condition)

B: Deepen the blue of the sapphire (under reduction conditions)

C: Removing filamentous inclusions and poorly developed starlight from sapphire (cooling rapidly after heating)

D: Starlight generation (cooling slowly after heating)

E: The light yellow and yellow-green corundum is heated under the condition of oxidation to become orange to golden sapphire.

Unfortunately, this manual treatment is not easy to identify. But high temperatures can weaken the stones and make them more likely to crack inside.
The buyer pleasure is our primary concentrate on. We uphold a consistent level of professionalism, excellent, credibility and service for China Manufacturer for The First Quality Cushion Cut Natural Semi Precious Amethyst, If you’re searching for a top quality, fast delivery, greatest following company and superior value supplier in China for long-term business partnership, we’re going to be your best choice.
China Manufacturer for China Natural Stone and Natural Amethyst price, By continuous innovation, we will offer you with more valuable items and services, and also make a contribution for the development of the automobile industry at home and abroad. Both domestic and foreign merchants are strongly welcomed to join us to grow together.