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3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds

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China Henan Yuda Crystal Co.,Ltd certification
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3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds

3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds
3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds 3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds 3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds

Large Image :  3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds

Product Details:
Place of Origin: Zhengzhou, China
Brand Name: YUDA CRYSTAL
Certification: IGI
Model Number: YD-A+
Payment & Shipping Terms:
Minimum Order Quantity: Negotiate
Price: Negotiate
Packaging Details: Carton box
Delivery Time: 1-7 working days
Payment Terms: T/T, Western Union, PayPal, Bank Transfer
Supply Ability: 50000carats per month

3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds

Description
Product Name: Certified Lab Grown Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: GH Clarity: VS SI
Carat Weight: 3ct Cut: Ideal, Excellent, VeryGood, Good
Technology: HPHT, CVD 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 Terms: 100% Payment In Advance
Payment Mode: T/T, Bank Transfer, PayPal, Western Union Delivery Time: 1-7 Working Days Depends On Quantity
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
High Light:

CVD Certified Lab Grown Diamonds

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3ct Certified Lab Grown Diamonds

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3ct diamond igi certified

3ct G-H Color VS-SI Clairty CVD IGI Certified Lab Grown Diamonds

 

Certified Lab Grown Diamonds Description

 

Diamonds are made of pure carbon in the shape of a tetrahedron. 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.
HPHT is the primary method used to grow rough diamonds in a laboratory. At present, the world's popular high-temperature and high-pressure synthetic diamond equipment mainly includes two side top, six side top and bar split sphere or improved split sphere.
CVD stands for chemical vapor deposition, which is one of main methods to make lab grown diamonds. The growth of this kind of diamond requires proper pressure and temperature of the hydrocarbon gas mixture in the vacuum chamber.

CVD diamond growth process
Place the diamond seed in the diamond growth chamber.

A carbon-containing gas is injected into the growth chamber.

Heat the growth chamber to 900-1200°C.

The microwave beam causes carbon to fall from the plasma cloud and deposit on the seed crystal.

Every few days, the diamond is taken out, the top surface of the diamond is polished, and the non-diamond carbon elements are removed from it, and then returned to the growth chamber. Each batch of diamonds may need to go through several start/stop cycles, and the entire growth process takes three to four weeks.

For consumers, a professional diamond certificate can clearly show the detailed characteristics of the diamond. So that people can clearly know the quality of the diamonds they buy.

 

Parameters of Certified Lab Grown Diamonds

Certified Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Certified Lab Grown Diamonds
Diamond Color GH
Diamond Clarity VS-SI
Diamond Carat Weight 3 carat
Diamond Cut Excellent, Very Good,Good
Polish Excellent, Very Good,Good
Symmetry Excellent, Very Good,Good
Technology HPHT
Size 3carat per pcs
Shape Round
Diamond Enhancement None
Available Type HPHT, CVD
Diamond Certificate IGI
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)

 

Certified 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 $$$$$ $$$

 

Certified Lab Grown Diamonds Details

 

3ct G H Color VS SI CVD IGI Certified Lab Grown Diamonds 0

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