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 | Oval |
| 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 | Oval |
| Cut | Very Good Cut | Brand Name | Yuda Crystal |
| Model Number | RBC | Certification | None |
| Place of Origin | Zhengzhou, China | ||
| High Light | HPHT CVD Gia Diamond Lab Grown ，2.0ct Gia Diamond Lab Grown ，1.0ct Gia Diamond Lab Grown | ||
1.0 To 2.0ct HPHT White Oval Shape Loose Synthetic Diamond Fancy Cut IGI Certified
Lab Grown HPHT CVD Diamonds Description
Laboratory diamonds are generally produced by chemical vapor deposition (CVD) or high pressure and high temperature (HPHT) processes and are of similar quality to natural diamonds. Rhinestones are often used to craft priceless jewelry, as they can be cut into a variety of shapes and polished to achieve many different finishes.
Although laboratory grown diamonds and natural diamonds grow in different environments and conditions, natural diamonds and laboratory grown diamonds are pure carbon crystals with the same physical, chemical, crystal structure and optical properties. The diamonds produced in the laboratory and mined are real diamonds.
Artificial diamonds, commonly known as laboratory diamonds under high temperature and high pressure, are formed by imitating the crystallization process of natural diamonds. Natural diamonds are formed in the natural environment and usually mixed with other elements, which makes some natural diamonds not completely transparent and can show specific colors. Diamonds grow under high temperature and pressure in the laboratory. Diamonds contain less 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 150 to 200 kilometers deep can slowly cool in the crater, usually 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, gem grade diamonds produced in the laboratory can now be produced under natural conditions, using high temperature and high pressure (HPHT) or chemical vapor deposition (CVD) technology to simulate the production of natural diamonds in the laboratory in a few 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 | Oval |
| Diamond Technology | HPHT/CVD |
| Diamond Cut | Very Good Cut |
| Payment Terms | 100% Payment In Advance |
| Diamond Carat Weight | 1.0CT-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 | Diamond Jewelry (necklace,ring,earring) |
| Application | For Sale |
| Place Of Origin | Henan, 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 |
In the past decade, synthetic diamond has received wide attention because it allows many new applications of diamond. Lab-grown diamond is an environmentally friendly product with pollution-free technology and no environmental pollution.
From a scientific point of view, synthetic diamond and natural diamond are exactly the same. The only difference is that they are formed in different positions.
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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