Henan Yuda Crystal Co.,Ltd
| Payment Terms | 100% Payment In Advance |
| Supply Ability | 50000carats per month |
| Delivery Time | 1-7 Working Days Depends On Quantity |
| Packaging Details | Carton box |
| Product Name | Lab Grown Melee Diamonds |
| Brand | Yuda Crystal |
| Grade | High |
| Assortment | Good |
| Color | DEF |
| Clarity | VVS VS SI |
| Carat Weight | 0.008-0.015ct |
| Cut | Ideal, Excellent, VeryGood, Good |
| Technology | HPHT |
| Shape | Round Brilliant Cut |
| Usage | For Making Lab Diamonds Jewelry ( Rings, Earring, Necklace etc ) |
| 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 | Excellent, VeryGood, Good |
| Symmetry | Excellent, VeryGood, Good |
| 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 | 1-7 Working Days Depends On Quantity | Packaging Details | Carton box |
| Product Name | Lab Grown Melee Diamonds | Brand | Yuda Crystal |
| Grade | High | Assortment | Good |
| Color | DEF | Clarity | VVS VS SI |
| Carat Weight | 0.008-0.015ct | Cut | Ideal, Excellent, VeryGood, Good |
| Technology | HPHT | Shape | Round Brilliant Cut |
| Usage | For Making Lab Diamonds Jewelry ( Rings, Earring, Necklace etc ) | 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 | Excellent, VeryGood, Good |
| Symmetry | Excellent, VeryGood, Good | 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 | 1.4mm Man Made Melee Diamonds ，1.3mm Man Made Melee Diamonds ，1.2mm Melee Diamonds For Rings | ||
DEF VS-SI 1.2mm 1.3mm 1.4mm Man Made Melee Diamonds For Diamond Rings
Man Made Melee Diamonds Description
Diamonds are famous all over the world as luxury and precious jewelry. However, it is also the hardest substance in nature, a good heat conductor and an inert substance. These characteristics mean that diamonds can play an important role in some industrial applications, such as metal cutting, drilling, grinding, mining and construction, as well as applications in high-pressure testing and high-performance bearings.
Lab grown diamonds is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT).
For a long time, people believed that diamonds could only be created under high pressure and high temperature conditions, imitating the formation of natural diamonds. This is called HPHT(high pressure and high temperature) method.
However, in the late 1980s, scientists discovered how to use a method called chemical vapor deposition (CVD) to create diamonds. Diamonds produced by CVD are produced by mixing hydrocarbons, usually methane, with hydrogen in a low-pressure vacuum chamber. The diamond will grow in a few days until it reaches the size required for the specific application. Normally, when methane and hydrogen are mixed, carbon is produced in a non-diamond form, such as graphite. In the CVD chamber, microwave energy, electric discharge, or hot cathode is used to generate hydrogen atoms, which react with non-diamond carbon to form vapor. Highly active hydrocarbon vapors will further react with hydrogen atoms, resulting in the separation of hydrogen and pure carbon, and pure carbon is deposited as diamonds. With the repetition of this process, the diamond can grow into different sizes according to the required application.
Parameters of Man Made Melee Diamonds
| Lab Grown Melee Diamonds Details | |
| Brand Name | Yuda Crystal |
| Name | Lab Grown Melee Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VS-SI |
| Diamond Carat Weight | 0.080-0.015 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 1.2mm - 1.4mm |
| Shape | Round |
| Diamond Enhancement | None |
| Available Type | HPHT |
| Diamond Certificate | None |
| Application | Jewelry Decorations Rings Earring Necklace |
| Place Of Origin | Zhengzhou, China |
| Delivery Time | 1 - 7 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) |
Man Made Melee 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 | $$$$$ | $$$ |
Man Made Melee 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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