5mm To 7mm DEF Color Rough CVD Diamond Rectangular Shape
Contact Person : Li
Phone Number : +86 371 53395413
WhatsApp : +8615225124915
|Minimum Order Quantity :||Negotiate||Price :||Negotiate|
|Packaging Details :||Carton box||Delivery Time :||1-15 working days|
|Payment Terms :||T/T, Western Union, PayPal, Bank Transfer||Supply Ability :||50000carats per month|
|Place of Origin:||Zhengzhou, China||Brand Name:||YUDA CRYSTAL|
|Product Name:||CVD Lab Grown Diamonds||Brand:||Yuda Crystal|
|Usage:||For Cutting CVD Diamonds||Component:||Carbon|
|Hardness:||Moh's 10 Scale||Available Type:||HPHT, CVD|
|Place Of Origin:||Zhengzhou, China||Payment Terms:||100% Payment In Advance|
|Payment Mode:||T/T, Bank Transfer, PayPal, Western Union||Delivery Time:||1-15 Working Days Depends On Quantity|
|Courier:||DHL, FedEx, UPS, TNT, EMS Etc||Packaging:||As Export Standard|
5.0ct CVD Rough Diamonds,
4.0ct CVD Rough Diamonds,
3.0ct rough uncut diamonds
Vs Si Purity 3.0ct - 5.0ct CVD Rough Diamonds For 1 Carat Loose Cvd Diamond Cutting
CVD Rough Diamonds Description
Lab created diamonds can be made by HPHT and CVD methods.
What CVD stands for?
Chemical vapor deposition (CVD) is a process in which the carbon containing gas is dissociated and the carbon atoms are deposited on the substrate to form diamond films.
Diamond crystals grown by CVD are mostly plate-shaped, and occasionally small octahedral faces and diamond dodecahedral faces can be seen at the edge. The color of early CVD diamonds is dark brown or light brown, while recently discovered CVD diamonds have been proved to be colorless or nearly colorless after high temperature heat treatment. There are few inclusions in CVD diamonds, some of which are needle like and black irregular. However, it can not be used as a basis for distinguishing natural diamonds from HTHP synthetic diamonds. There is no metal inclusion in CVD diamond, so it is not magnetic.
Although the laboratory-grown rough diamonds are grown in the laboratory, they are composed of carbon atoms, have the same physical properties and chemical composition as natural diamonds, and have fewer impurities and higher purity than natural diamonds. And it's cheaper.
Parameters of CVD Rough Diamonds
|CVD Rough Diamonds Details|
|Brand Name||Yuda Crystal|
|Name||CVD Rough Diamonds|
|Diamond Carat Weight||3.0-5.0carat|
|Application||For Cutting Lab Grown Loose Diamonds|
|Place Of Origin||Zhengzhou, China|
|Delivery Time||1 - 15 Working Days Base on Order Quantity|
|Payment Terms||100% Payment In Advance|
|Payment Methods||T/T, PayPal, Western Union, Bank Transfer|
|Shipping way||DHL, FedEx, SF Express, UPS, EMS, TNT etc|
|Diamond Type||Synthetic(lab created)|
|Fire Dispersion||0.044(Same as Natural Diamond)|
|Brilliance Refraction Index||2.42(Same as Natural Diamond)|
|Relative Density||3.52(Same as Natural Diamond)|
|Chemical Composition||Carbon(Same as Natural Diamond)|
|Moh's Hardness||10(Same as Natural Diamond)|
CVD Lab Grown Diamonds Introduction
Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The Rough Lab Grown Diamonds are produced in the laboratory, usually in a few weeks. The chemical difference between the two is same.
So how do you distinguish between Rough Lab Grown Diamonds and natural diamonds?
There is no obvious difference between the Rough Lab Grown Diamonds and natural diamonds. Even professional gemologists need special equipment to identify them. By zooming in, professionals will be able to discern subtle contrasts in diamond inclusions grown and mined in the laboratory.
|The Difference Between Lab Diamond And Natural Diamond|
|Properties||Earth Mined||Lab Created|
|SP3 Carbon Diamond Bonds (%)||100%||100%|
|Internal Crystal Structure||Face-Centered Cubic||Face-Centered Cubic|
|Color||Various Grades||K to D grades|
CVD Lab Grown Diamonds Details