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 | Laboratory-Grown Rough HPHT Diamond |
| Brand | Yuda Crystal |
| Grade | High |
| Assortment | Good |
| Color | DEF |
| Clarity | VVS VS SI |
| Carat Weight | 1.00-1.50ct |
| Cut | Uncut |
| Technology | HPHT |
| Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Polished Diamonds |
| Component | Carbon |
| Hardness | Moh's 10 Scale |
| Available Type | HPHT, CVD |
| 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 | Laboratory-Grown Rough HPHT Diamond | Brand | Yuda Crystal |
| Grade | High | Assortment | Good |
| Color | DEF | Clarity | VVS VS SI |
| Carat Weight | 1.00-1.50ct | Cut | Uncut |
| Technology | HPHT | Shape | Rough, Raw |
| Usage | For Cutting Lab Grown Polished Diamonds | Component | Carbon |
| Hardness | Moh's 10 Scale | Available Type | HPHT, CVD |
| 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 | Laboratory Grown HPHT Rough Diamond ，1 Carat HPHT Rough Diamond ，White 0.5ct Polish Lab Diamonds | ||
1 Carat Laboratory-Grown Rough HPHT Diamond With Full White Color For Making 0.5ct Polish Lab Diamonds
Laboratory-Grown Rough HPHT Diamond Description
The laboratory-grown rough diamond are grown in the laboratory. They are composed of carbon atoms, have the same physical properties and chemical composition as natural diamonds, and have fewer impurities and higher purity than natural diamonds. And it's cheaper.
There are two techniques for growing diamond in the laboratory, one is the high temperature and high pressure method. This method is the most widely used. The other is chemical vapor deposition method. This method can obtain high-purity diamond without a catalyst.
What is the essential difference between natural diamonds and cultivated diamonds, mainly in the following points:
1. Formation time
Natural diamonds are formed under high temperature and high pressure due to geological reasons, and it takes tens of thousands or even tens of millions of years to produce. Cultivated diamonds are cultivated by scientists by simulating the growth environment of natural diamonds, under the same high temperature and high pressure conditions, through very sophisticated instruments, in about one to three weeks.
2. Crystal shape
Due to the different formation conditions, the properties of natural diamonds and cultivated diamonds are also different. The formation temperature of natural diamond crystals and laboratory-grown diamonds is almost the same, but natural diamonds will grow into octahedral crystals, while cultivated diamond crystals can grow into crystals that contain both octahedrons and cubes.
3. Color
The vast majority of synthetic diamonds are yellow, brown and yellow with hourglass bands; while natural diamonds are colorless, light yellow and other colors. At present, gem quality lab diamonds can also achieve colorless, which is almost unrecognizable to the naked eye.
Parameters of Laboratory-Grown Rough HPHT Diamond
| Laboratory-Grown Rough HPHT Diamond Details | |
| Brand Name | Yuda Crystal |
| Name | Laboratory-Grown Rough HPHT Diamond |
| Diamond Color | D, E, F |
| Diamond Clarity | VVS-VS-SI |
| Diamond Carat Weight | 1.0 - 1.5 carat |
| 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) |
Laboratory-Grown Rough HPHT 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 | $$$$$ | $$$ |
Laboratory-Grown Rough HPHT 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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