Henan Yuda Crystal Co.,Ltd
| Payment Terms | 100% Payment In Advance |
| Supply Ability | 50000carats per month |
| Delivery Time | 1-7 working days |
| Packaging Details | Carton box |
| Product Name : | HPHT Lab Grown Diamonds |
| Color | DEFG |
| Clarity | VVS VS SI |
| Carat Weight | 1.5-2.0 Carat |
| Technology | HPHT |
| Usage | For Diamonds Jewelry |
| Payment Mode | T/T, PayPal,Bank Transfer, Western Union |
| Delivery time | 1-7 Working Days Depends On Quantity |
| Courier | FedEx, DHL, UPS, TNT, EMS etc |
| Packaging | As Export Standard |
| Hardness | Moh's 10 Scale |
| Shape | Round |
| Cut | Very Good Cut |
| Brand Name | Yuda Crystal |
| Model Number | RBC |
| Certification | None |
| Place of Origin | Zhengzhou, China |
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Product Specification
| Payment Terms | 100% Payment In Advance | Supply Ability | 50000carats per month |
| Delivery Time | 1-7 working days | Packaging Details | Carton box |
| Product Name : | HPHT Lab Grown Diamonds | Color | DEFG |
| Clarity | VVS VS SI | Carat Weight | 1.5-2.0 Carat |
| Technology | HPHT | Usage | For Diamonds Jewelry |
| Payment Mode | T/T, PayPal,Bank Transfer, Western Union | Delivery time | 1-7 Working Days Depends On Quantity |
| Courier | FedEx, DHL, UPS, TNT, EMS etc | Packaging | As Export Standard |
| Hardness | Moh's 10 Scale | Shape | Round |
| Cut | Very Good Cut | Brand Name | Yuda Crystal |
| Model Number | RBC | Certification | None |
| Place of Origin | Zhengzhou, China | ||
| High Light | 1.5ct VVS CVD Loose Diamonds ，2.0ct VS CVD Loose Diamonds ，2.0ct SI HPHT Loose Diamonds | ||
1.5ct 2.0ct VVS VS SI Lab Grown HPHT Loose Diamonds For Diamond Jewelry
Lab Grown HPHT Diamonds Description
Diamonds are considered the hardest material in the world. There are 10 mohs scales of hardness, with diamond being the highest. Since it has been known that diamonds are made of pure carbon, more and more people have begun to study diamonds under high temperature and pressure in the laboratory. At present, high temperature and high pressure laboratory diamond raw material industry develops rapidly, widely used in various industries and processing industries.
Although lab-grown diamonds are in different environments and conditions from natural diamonds, both natural and laboratory diamonds are pure carbon crystals, and their physical properties, chemical properties, crystal structure and optical properties are the same. Lab-grown diamonds and mined diamonds are real diamonds.
Artificial diamonds, often referred to as laboratory diamonds at high temperatures and pressures, are formed by mimicking the crystallization process of natural diamonds. Natural diamonds are formed in the natural environment and are often mixed with other elements, which makes some natural diamonds not completely transparent and can take on a specific color. For example, some have pink diamonds, some have a touch of blue, and some have light yellow. Diamonds are grown in the laboratory under high temperature and pressure. There are fewer impurities than natural diamonds, so they are more pure and transparent.
Natural diamonds take millions of years to form. Before a volcano erupts, underground lava Wells about 150 to 200 kilometers deep can slowly cool inside the crater, often because the crater is blocked. The pressure of pure carbon material is 4.5 * 10 ^ 6 ~ 9pa. When the temperature drops to 1000 ~ 1250℃, natural diamond crystals are formed. Diamonds are formed under physical and chemical conditions in some parts of the earth.
However, lab-produced gem-grade diamonds can now be produced under natural conditions using high temperature and pressure (HPHT) or chemical vapor deposition (CVD) techniques to simulate the production of natural diamonds in a laboratory in a matter of weeks.
Parameters Of Lab Grown HPHT CVD Diamonds
| Product Name | Synthetic (Lab created) Loose Diamond |
| Material | Lab Grown Loose Diamond |
| Diamond Color | DEFGH |
| Diamond Shape | Round |
| Diamond Technology | HPHT/CVD |
| Diamond Cut | Very Good Cut |
| Payment Terms | 100% Payment In Advance |
| Diamond Carat Weight | 1.5CT-2.0CTS |
| Diamond Clarity | VVS VS SI |
| Shipping way | DHL, FedEx, SF Express, UPS, EMS, TNT etc |
| M.O.Q | Negotiable |
| Delivery Time | 1-7 Working Days Depends On Quantity |
| Payment Methods | T/T, PayPal, Western Union, Bank Transfer |
| Used | Jewelry (necklace,ring,earring) |
| Application | For Sale |
| Place Of Origin | Zhengzhou, China |
Characteristics Of Lab Grown HPHT CVD Diamonds
Laboratory cultivation of diamond is bred in the laboratory. People use advanced equipment to simulate the natural diamond formation of the environment. Laboratory-grown diamonds are usually produced in a lab for several weeks. Natural diamonds are created by nature, the result of billions of years of high temperature and pressure. Both on the chemistry of the difference is the same.
So how do you distinguish between laboratory cultivation of diamond and natural diamond?
Laboratory cultivation of diamond and natural diamond there was no significant difference. Even professional gemologists also need special equipment to identify them. By magnifying, professionals will be able to recognize in the lab, growth and production of diamond inclusions nuances.
| The Difference Between Lab Diamond And Natural Diamond | |||
| Attribute | Lab-Created Diamonds | Natural diamond | Distinction |
| Chemical composition | C(carbon) | C(carbon) | No |
| Refractive index | 2.42 | 2.42 | No |
| Relative density | 3.52 | 3.52 | No |
| Dispersion | 0.044 | 0.044 | No |
| Hardness value | 90 GPA | 90 GPA | No |
| Thermal conductivity | 2*103 W/M/K | 2*103 W/M/K | No |
| Thermal property | 0.8*10-6 K | 0.8*10-6 K | No |
| Light transmittance | DEEP UV TO FAR TR | DEEP UV TO FAR TR | No |
| Resistivity | 1016 OHM-CM | 1016 OHM-CM | No |
| Compressibility | 8.3*10-13 M2/N | 8.3*10-13 M2/N | No |
From a scientific point of view, synthetic diamond and natural diamond exactly the same, the only difference is that the formation of their position.
Loose Lab Grown HPHT CVD Loose Diamonds Details
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Seller
Year Established:
2016
Total Annual:
50 Million-200 Million
Employee Number:
10~50
Ecer Certification：
Verified Supplier
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 ...
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