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 | Lab Raw Uncut Rough Diamond |
| Brand | Yuda Crystal |
| Grade | High |
| Assortment | Good |
| Color | DEF |
| Clarity | VVS VS SI |
| Carat Weight | 8.0-20.0ct |
| Cut | Uncut |
| Technology | CVD |
| Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Polished 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 | Lab Raw Uncut Rough Diamond | Brand | Yuda Crystal |
| Grade | High | Assortment | Good |
| Color | DEF | Clarity | VVS VS SI |
| Carat Weight | 8.0-20.0ct | Cut | Uncut |
| Technology | CVD | Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Polished 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 | CVD Uncut Rough Diamond 8.0ct ，uncut rough diamond 20.0ct ，EFG SI VS VVS lab diamonds | ||
DEF Color SI VS VVS HPHT Lab Raw Uncut Rough Diamond For Cutting Lab Diamonds
Lab Raw Uncut Rough Diamond Description
Lab grown diamonds are also named lab created diamonds, man made diamonds and synthetic diamonds. There are two main methods to create lab grown diamonds: CVD and HPHT.
Chemical Vapor Deposition is a growth method for cultivating diamonds. CVD (Chemical Vapor Deposition) diamonds are based on diamond seeds. With the aid of high-purity methane, hydrogen, nitrogen and other gases, the carbon molecules in methane and diamonds are continuously accumulated on the original diamonds in a microwave oven under high pressure. After layer-by-layer diffusion, transparent diamonds can be formed. The quality of this lab grown diamond is almost the same as natural diamonds. CVD diamond is a high-tech synthetic diamond whose material is mainly carbon, just like natural diamond. Its hardness, density, thermal conductivity, brightness, sparkle and fire color are almost the same as natural diamonds
There is also HPHT (High Pressure High Temperature) method. HPHT was applied to gem-grade cultivated diamonds earlier, and HPHT cultivated diamonds appeared in the jewelry market as early as 2010. HPHT diamonds usually have high color while CVD diamonds usually have high clarity.
Parameters of Lab Raw Uncut Rough Diamond
| Lab Raw Uncut Rough Diamond Details | |
| Brand Name | Yuda Crystal |
| Name | Lab Raw Uncut Rough Diamond |
| Diamond Color | DEF |
| Diamond Clarity | VS1-SI2 |
| Diamond Carat Weight | 8.0carat+ |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 5.0-7.0mm |
| 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 Raw Uncut Rough Diamond 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 Raw Uncut Rough Diamond 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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