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 Lab Grown Diamonds |
| Brand | Yuda Crystal |
| Grade | High |
| Assortment | Good |
| Color | DEF |
| Clarity | VVS VS |
| Carat Weight | 1.0-1.5ct 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, 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 | HPHT Lab Grown Diamonds | Brand | Yuda Crystal |
| Grade | High | Assortment | Good |
| Color | DEF | Clarity | VVS VS |
| Carat Weight | 1.0-1.5ct 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, 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 | 2ct HPHT Lab Grown Diamonds ，VVS 1 carat synthetic diamond ，1.5ct man made real diamonds | ||
DEF VVS VS Lab-Created 1.0ct 1.5ct 2.0ct HPHT Lab Grown Diamonds
HPHT Lab Grown Diamonds Description
The Lab Grown Diamonds are produced in the laboratory. The laboratory uses advanced technology and equipment to reproduce the formation enviornment of natural diamonds. By using fine diamond seeds to induce natural diamond crystallization, Lab Grown Diamonds with the same physical, chemical and optical properties as natural diamond can be cultivated on the ground. Lab Grown Diamonds are real diamonds.
Lab Grown Diamonds are 100% real diamonds and 100% eco-friendly diamonds. It's very cost effective and more affordable.
HPHT stands for high pressure and high temperature. In order to grow high performance high temperature diamond, a small diamond seed was put into carbon, diamond is made of carbon. Diamond seeds are exposed to extreme heat and pressure to replicate diamonds in a natural way. They grow underground. Diamond seeds exposed above 1100 degrees, pressure about 1.5 million Pounds per square inch. The carbon melts around the seeds and forms diamonds. Then it cools and the diamond forms.
Chemical vapor deposition (CVD) is a method to grow diamond from hydrocarbon gas mixture. The flexibility and simplicity of CVD devices explain the popularity of CVD growth in laboratory research. The advantages of CVD diamond growth include the ability to grow diamond on large area and different substrates, as well as the fine control of chemical impurities and properties of the diamond.
The growth of CVD involves the preparation of substrates, injecting different amounts of gases into a chamber and energizing them. The substrate preparation includes selecting suitable materials and crystal orientation; When cleaning, diamond powder is often used to grind non diamond substrate; Optimized substrate temperature (about 800 ℃) In the growth process, through a series of test run. These gases usually include a carbon source, usually methane, and a typical ratio of 1:99 hydrogen. Hydrogen is essential because it selectively corrodes non diamond carbon. These gases are ionized into chemically active radicals in the growth chamber by microwave power, hot filament, arc discharge, welding torch, laser, electron beam or other methods.
Parameters of HPHT Lab Grown Diamonds
| HPHT Lab Grown Diamonds Details | |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 1.0-1.5ct 1.5-2.0ct |
| 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) |
HPHT Lab Grown 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 | $$$$$ | $$$ |
HPHT Lab Grown 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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