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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.
Name | natural sapphire |
Place of Origin | Sri Lanka |
Gemstone Type | Natural |
Gemstone Color | blue |
Gemstone Material | sapphire |
Gemstone Shape | Round Brilliant Cut |
Gemstone Size | 0.8mm |
Gemstone Weight | According to the size |
Quality | A+ |
Available shapes | Round/Square/Pear/Oval/Marquise shape |
Application | jewelry/making/clothes/pandent/ring/watch/earing/necklace/bracelet |
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.
Assume full accountability to fulfill all demands of our purchasers; attain continual advancements by marketing the advancement of our clientele; grow to be the final permanent cooperative partner of purchasers and maximize the interests of purchasers for Hot-selling Small Size Oval Round Square Rectangle/ Baguette Octagon Cushion Heart Drop Natural Sapphire Ruby Gemstome Triangle Marquise Pear Octagon Cushion, We sincerely welcome abroad buyers to consult for that long-term cooperation plus the mutual advancement.
Hot-selling China Natural Smoky Quartz and Synthetic Demantoid price, We are proud to supply our products to every auto fan all around the world with our flexible, fast efficient services and strictest quality control standard which has always approved and praised by customers.