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 |
| Carat Weight | 0.01ct |
| 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, 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 | 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 |
| Carat Weight | 0.01ct | 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, 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 | 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 | 1.35mm Lab Created Melee Diamonds ，1.25mm Lab Created Melee Diamonds ，DEF VVS VS star melee diamonds | ||
DEF VVS VS 1.25mm - 1.35mm Lab Created Melee Diamonds For Diamond Watch Making
Lab Created Melee Diamonds Description
Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both lab grown diamonds and natural diamonds are real diamonds. The main chemical components of lab grown diamonds and natural diamonds are carbon.
Lab grown diamonds is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT) methods.
The gem-grade synthetic diamond produced by the CVD (chemical vapor deposition) method is beautiful in appearance and has almost the same properties as natural diamonds. Because of their high purity, these CVD products belong to Type IIa, which constitutes only a small portion of natural diamonds. Under the advanced detection technology, any diamond sample using CVD growth method can be clearly identified.
Colorless and almost colorless synthetic diamonds are usually type IIa, while only 2% of natural diamonds are type IIa. Type IIa diamonds are characterized by high purity, and they exhibit transparency in certain parts of the ultraviolet and infrared spectra.
A hydrogen-rich environment can cause defects, called vacancies, because occasionally carbon atoms will leave the diamond crystal, creating vacancies. The carbon vacancy next to the silicon atom can form a silicon vacancy (Si-V) center, which is very rare in nature. The carbon vacancy adjacent to the nitrogen atom can form a nitrogen vacancy (N-V) center, which is very rare in nature. The defects of these two vacancies can be detected by spectroscopic measurements such as photoluminescence, ultraviolet irradiation and light absorption. Since diamond has the characteristics of layer-by-layer formation, and nitrogen is non-uniformly fused between the layers, growth stripes can be observed.
Parameters of Lab Created Melee Diamonds
| Lab Grown Melee Diamonds Details | |
| Brand Name | Yuda Crystal |
| Name | Lab Grown Melee Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VVS-VS |
| Diamond Carat Weight | 0.01 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 1.25mm - 1.35mm |
| Shape | Round |
| Diamond Enhancement | None |
| Available Type | HPHT, CVD |
| 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) |
Lab Created Melee Diamonds Introduction
Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The Rough 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 Rough Lab Grown Diamonds and natural diamonds?
There is no obvious difference between the Rough 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 Created 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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