Henan Yuda Crystal Co.,Ltd
| Payment Terms | 100% Payment In Advance |
| Supply Ability | 50000carats per month |
| Delivery Time | 1-7 working days |
| Packaging Details | Carton box |
| Product Name : | Pear Cut Lab Loose Diamonds |
| Diamond Color | DEFG |
| Diamond Clarity | VVS VS SI |
| Diamond Carat Weight | 1.0-2.0ct |
| Technology | HPHT |
| Usage | For Cutting Lab Grown Diamonds |
| Payment Mode | T/T, Bank Transfer, PayPal, Western Union |
| Delivery time | 1-7 Working Days Depends On Quantity |
| Courier | FedEx,DHL, UPS, TNT, EMS etc |
| Packaging | As Export Standard |
| Hardness | Moh's 10 Scale |
| Diamond Shape | Pear Cut |
| Customization | Customer Requirement |
| Diamond Cut | Good Cut |
| Brand Name | Yuda Crystal |
| Model Number | RBC |
| Certification | None |
| Place of Origin | Henan, China |
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Product Specification
| Payment Terms | 100% Payment In Advance | Supply Ability | 50000carats per month |
| Delivery Time | 1-7 working days | Packaging Details | Carton box |
| Product Name : | Pear Cut Lab Loose Diamonds | Diamond Color | DEFG |
| Diamond Clarity | VVS VS SI | Diamond Carat Weight | 1.0-2.0ct |
| Technology | HPHT | Usage | For Cutting Lab Grown Diamonds |
| Payment Mode | T/T, Bank Transfer, PayPal, Western Union | Delivery time | 1-7 Working Days Depends On Quantity |
| Courier | FedEx,DHL, UPS, TNT, EMS etc | Packaging | As Export Standard |
| Hardness | Moh's 10 Scale | Diamond Shape | Pear Cut |
| Customization | Customer Requirement | Diamond Cut | Good Cut |
| Brand Name | Yuda Crystal | Model Number | RBC |
| Certification | None | Place of Origin | Henan, China |
| High Light | 2.0ct IGI Synthetic Loose Diamonds ，1.0ct IGI Synthetic Loose Diamonds ，1.5ct IGI Synthetic Loose Diamonds | ||
1.0ct 1.5ct 2.0ct IGI Certified Pear Cut Synthetic Loose DiamondS For Wedding Rings
Lab Grown Loose Diamonds Description
Laboratory diamonds are real diamonds. Carbon is the main component of natural and man-made diamonds. Laboratory grown diamonds are diamonds grown in the laboratory using equipment that simulates the natural diamond growth environment. Synthetic diamonds have the same chemical and physical properties as natural diamonds in terms of hardness, thermal conductivity and strength. Diamonds grown in the laboratory are diamonds grown in the laboratory. Their chemical composition is the same as that of natural diamonds, and they are also exactly the same optically. Artificial diamonds have the same hardness and durability as natural diamonds. Diamonds grown in the laboratory are the same as natural diamonds after polishing and cutting. They have the same brightness and flame.
Can we distinguish between laboratory diamonds and natural diamonds?
Yes, only diamond professionals can use professional diamond identification equipment to identify the difference between laboratory produced diamonds and natural diamonds.
High temperature and high pressure method and chemical vapor deposition method are two main methods to manufacture laboratory diamond.
High temperature and high pressure method (HTHP) uses graphite as raw material and introduces appropriate metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., which can synthesize diamond at tens of thousands of atmospheres above 2000K.
CVD: chemical vapor deposition (CVD) is a method of decomposing raw materials at high temperature to produce active particles such as carbon atoms or methyl groups, and depositing and growing diamond films on the substrate (substrate) under certain process conditions.
Characteristics Of Lab Grown Diamonds
| The Difference Between Lab Diamond And Natural Diamond | |||
| Attribute | Lab Grown Diamonds | Natural diamond | Distinction |
| Chemical composition | C(carbon) | C(carbon) | No |
| Refractive index | 2.42 | 2.42 | No |
| Relative density | 3.52 | 3.52 | No |
| Dispersion | 0.044 | 0.044 | No |
| Hardness value | 90 GPA | 90 GPA | No |
| Thermal conductivity | 2*103 W/M/K | 2*103 W/M/K | No |
| Thermal property | 0.8*10-6 K | 0.8*10-6 K | No |
| Light transmittance | DEEP UV TO FAR TR | DEEP UV TO FAR TR | No |
| Resistivity | 1016 OHM-CM | 1016 OHM-CM | No |
| Compressibility | 8.3*10-13 M2/N | 8.3*10-13 M2/N | No |
From a scientific point of view, synthetic diamond and natural diamond is the same, the only difference is that where they are formed.
Prospects And Advantages Of Lab Grown Diamonds
Natural diamonds are formed naturally and are the result of billions of years of high temperature and high pressure. Laboratory diamonds are produced in the laboratory, usually within a few weeks. The chemical properties of the two are the same.
So how to distinguish between man-made diamonds and natural diamonds?
There is no obvious difference between laboratory cultured diamonds and natural diamonds. Even professional gemologists need special equipment to identify them. By zooming in, professionals will be able to distinguish the subtle contrast between diamond inclusions grown and mined in the laboratory.
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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