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Brand Name : Yuda Crystal
Model Number : RBC
Certification : None
Place of Origin : Zhengzhou, China
MOQ : Negotiate
Price : Negotiate
Payment Terms : 100% Payment In Advance
Supply Ability : 50000carats per month
Delivery Time : 1-7 working days
Packaging Details : Carton box
Product Name : HPHT Rough Diamonds
Color : GHI
Clarity : VS+
Carat Weight : 8-8.99ct
Technology : HPHT
Usage : For Cutting Lab Grown Diamonds
Payment Mode : T/T, Bank Transfer, PayPal, Western Union
Delivery time : 1-7 Working Days Depends On Quantity
Courier : DHL, FedEx, UPS, TNT, EMS etc
Packaging : As Export Standard
Hardness : Moh's 10 Scale
Shape : Rectangular
Cut : Uncut
VS+ Purity HPHT Lab Created Dinmonds White Synthetic Rough Diamonds For Sale
Lab Created Diamonds Description
Cultivated diamond is synthesized by artificial simulation of natural diamond crystallization conditions and growth environment, and natural diamond has exactly the same physical, chemical and optical properties. Production time is perhaps the biggest difference between the two types of diamonds, with natural diamonds taking hundreds of millions of years to form and cultured diamonds taking just a few weeks to produce.
Scientists have mastered how to grow a diamond in a laboratory, which is much cheaper than mining natural diamonds.
1. High pressure high Temperature method (HPHT)
Growing diamonds requires an indispensable element: carbon (C). In the process of growing HPHT diamonds, pure carbon powder is compressed into a growth capsule and then placed in a incubation chamber at pressures of 5-6 gpa and extremely high temperatures (up to 1300-1600°C) day in and day out. Eventually the carbon atoms join together to form a diamond crystal. Many large diamonds over 10 carats can be produced in one go in less than two weeks.
2.Chemical vapor Deposition (CVD)
Breeding process of chemical vapor deposition method is as follows: first, place a piece of diamond chips in a vacuum box, the next in the chamber filled with a mixture of hydrogen and methane gas, the gas provides a carbon atom, under the pressure of certain heating, until the gasification of carbon atoms on the thin layers and layers of sedimentary, like rain, forming uniform diamond coating. It takes nearly a month to grow a one-carat CVD diamond crystal.
Parameters Of Artificial Lab Created Diamonds
Product Name | Synthetic (Lab created) diamond |
Technology | HPHT |
Color | D-F |
Size | 8-8.99CT |
Grade | VVS VS |
Used | Jewelry (necklace,ring,watch) |
Application | For Cutting Lab Grown Loose Diamonds |
Place Of Origin | Zhengzhou, China |
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VS+ Purity HPHT Lab Created Diamonds White Synthetic Rough Diamonds Images |