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White Color HPHT Lab Grown Rough Diamonds DEF VVS VS Clarity Round Uncut LGD
What Are Lab Grown Diamonds?
Laboratory-grown diamonds are a new source of diamonds grown on Earth. They are the same as diamonds extracted from the ground – chemically, physically and optically. Diamond, also known as diamond, is made up of carbon atoms, like graphite, the main component of a pencil lead. However, the difference in structure makes graphite rank only at the lowest grade of 1 on the Mohs hardness scale, and diamond at the highest grade of 10. The key to the formation of different structures between carbon atoms lies in pressure and temperature. Therefore, diamonds can be synthesized by artificially creating the corresponding pressure and temperature conditions according to the carbon phase diagram.
How Does A Diamond Grow Above Earth?
There are two basic techniques for carbon to crystallize on diamond substrates – namely high pressure and high temperature (HPHT) technology and chemical vapor deposition (CVD) technology.
During the CVD process, methane gas uses microwave energy to be activated to a temperature of about 2000-3000 F, causing it to rupture and release carbon atoms that are deposited onto a diamond substrate. It grows slowly layer by layer, atom by atom. This is a natural crystal growth process that leads to similar types of inclusions and defects that appear in mined diamonds, and once the process begins, it is beyond human control.
In the HPHT process, diamond seeds (real diamond) are covered in the growth chamber along with graphite and metal catalysts and covered with a ceramic casing. As the pressure and temperature rise to about 55 K Bar and 1500 C, respectively, the carbon atoms are released from the graphite by a melting catalyst, and the atomic process of crystal growth begins on the diamond seed. Diamonds grow layer by layer, atomically over a period of 8-10 days. New diamonds are cleaned and can be cut and polished just like any other rough diamond extracted from the ground.
Lab grown & natural diamonds
lab grown diamonds
natural diamonds
grown in a lab
mined from the earth
created in months
created over billions of years
offer incredible value
prized for their rarity
Specification
Item
Value
Brand name
Yuda Crystal
Model number
HPHT-A+
Place of origin
Henan,China
Usage
Jewellery,for polishing,rings
Hardness
10
Payment term
100% payment
Shipping ways
DHL,FEDEX,UPS.EMS
Delivery Time
1 - 7 Working Days Base on Order Quantity
Are lab created diamond Real?
Of course. 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.
Diamond
Real Diamond
Fake Diamond
Natural Diamond
Lab Diamond
Zircon
Moissanite
Who are we? Henan YuDa Crystal Co., Ltd. are based in ZhengZhou city.We are specialized in the export and import business of lab grown diamonds more than 10 years. YuDa is a professional company in all synthetic diamond applications, our main products are cvd diamond, hpht diamond, and customized diamond by your requirements. Our products enjoy a good reputation and are sold to Europe, America, Southeast Asia, South Africa and other countries and regions.
FAQ
Q:Do you provide samples? Is it free or not? A: Yes, we provide samples,but not for free. Q:What are your terms of payment? A: We accept Paypal,T/T,Western Union and MoneyGram. Q: Which express company do you use? A: As usual we used DHL,UPS ,FEDEX Or Brinks.
Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds ... Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds ...
