Henan Yuda Crystal Co.,Ltd
| Payment Terms | 100% Payment In Advance |
| Supply Ability | 50000carats per month |
| Delivery Time | 1-15 Working Days Depends On Quantity |
| Packaging Details | Carton box |
| Product Name | HPHT Synthetic Diamond |
| Brand | Yuda Crystal |
| Grade | High |
| Assortment | Good |
| Color | DEF |
| Clarity | VS SI |
| Carat Weight | 1.5-2.0ct |
| Cut | Uncut |
| Technology | HPHT |
| Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Diamonds |
| Component | Carbon |
| Hardness | Moh's 10 Scale |
| Available Type | HPHT |
| Place Of Origin | Zhengzhou, China |
| Payment Mode | T/T, Bank Transfer, PayPal, Western Union |
| Courier | DHL, FedEx, UPS, TNT, EMS etc |
| Packaging | As Export Standard |
| Customization | Welcome |
| Polish | None |
| Symmetry | None |
| Sample Order | Welcome |
| Treatments Applied | None |
| Enhancement | None |
| Brand Name | YUDA CRYSTAL |
| Model Number | YD-A+ |
| Certification | None |
| Place of Origin | Zhengzhou, China |
View Detail Information
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Product Specification
| Payment Terms | 100% Payment In Advance | Supply Ability | 50000carats per month |
| Delivery Time | 1-15 Working Days Depends On Quantity | Packaging Details | Carton box |
| Product Name | HPHT Synthetic Diamond | Brand | Yuda Crystal |
| Grade | High | Assortment | Good |
| Color | DEF | Clarity | VS SI |
| Carat Weight | 1.5-2.0ct | Cut | Uncut |
| Technology | HPHT | Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Diamonds | Component | Carbon |
| Hardness | Moh's 10 Scale | Available Type | HPHT |
| Place Of Origin | Zhengzhou, China | Payment Mode | T/T, Bank Transfer, PayPal, Western Union |
| Courier | DHL, FedEx, UPS, TNT, EMS etc | Packaging | As Export Standard |
| Customization | Welcome | Polish | None |
| Symmetry | None | Sample Order | Welcome |
| Treatments Applied | None | Enhancement | None |
| Brand Name | YUDA CRYSTAL | Model Number | YD-A+ |
| Certification | None | Place of Origin | Zhengzhou, China |
| High Light | VS SI HPHT Rough Diamond ，1.5 Carat HPHT Rough Diamond ，8mm 2 carat white diamond | ||
1.5 Carat To 2.0 Carat White Shade VS SI Purity HPHT Rough Diamond For Making Def Color Lab Grown Loose Diamonds
Lab Grown Rough Diamonds Description
Diamond grown in laboratory is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT).
High purity high temperature heat treatment (HPHT), which has been used since 1950s, places a pure solid carbon source under high pressure and high temperature. In the presence of catalyst, the carbon heated under pressure crystallizes into diamond. HPHT is sometimes used to improve the color of mined or laboratory grown diamonds.
Laboratory grown diamonds are man-made, like diamonds crystals.The The manufacturing process work replicates the pressure and temperature of the natural diamond production environment. By adding a catalyst to the carbon and placing the mixture in a high-voltage battery, the formation process is initiated by a forced chemical reaction. The mixture was then cooled and washed with acid to produce laboratory grown diamonds.
The quality of diamonds produced in the laboratory can range from lower than natural diamonds to higher than natural diamonds, depending on the technology and individual manufacturing processes.
Parameters of Lab Grown Rough Diamonds
| HPHT Lab Grown Diamonds Details | |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VS-SI |
| Diamond Carat Weight | 1.5-2.0 carat |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 5.0-8.0mm |
| Shape | Raw |
| 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 |
| M.O.Q | Negotiable |
| Diamond Type | Synthetic(lab created) |
| Location | Zhengzhou, China |
| Treatments Applied | None |
| 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) |
Lab Grown Rough Diamonds Introduction
Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The 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 Lab Grown Diamonds and natural diamonds?
There is no obvious difference between the 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 |
| Guaranteed Conflict-Free | No | Yes |
| Hardness (MOHS) | 10 | 10 |
| SP3 Carbon Diamond Bonds (%) | 100% | 100% |
| Internal Crystal Structure | Face-Centered Cubic | Face-Centered Cubic |
| Hardness Comparable | 2.42 | 2.42 |
| Relative Diversity | 3.52 | 3.52 |
| Color Diffusion | 0.044 | 0.044 |
| Color | Various Grades | K to D grades |
| Price | $$$$$ | $$$ |
Lab Grown Rough 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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