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20 Pointer 30 Pointer HPHT CVD Loose Lab Diamonds Round Brilliant Cut D G Color

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
Place of Origin: Zhengzhou, China Brand Name: YUDA CRYSTAL
Certification: None Model Number: YD-A+

Detail Information

Product Name: Lab Grown Melee Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEFG Clarity: VVS VS
Carat Weight: 0.10ct 0.20ct 0.30ct 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 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:

HPHT CVD loose lab diamonds

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20 Pointer loose lab diamonds

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0.30ct 30 pointer Diamond

Product Description

10pointer 20pointer 30pointer Round Brilliant Cut D-G Color VVS-VS HPHT CVD Loose Diamonds

 

HPHT CVD Loose Diamonds Description

 

Lab Grown Diamonds, also known as man made diamonds, cultured diamonds and lab created diamonds, are grown in a highly controlled laboratory environment using advanced technology. These synthetic diamonds are made up of actual carbon atoms. Because they are made of the same material as natural diamonds, they have the same optical and chemical properties.

Can we distinguish between laboratory grown diamonds and natural diamonds?
Yes it is. However, only diamond professionals can identify the difference between laboratory grown diamonds and natural diamonds by using professional diamond identification equipment.

HTHP and CVD are the two main methods for making laboratory-grown diamonds.

High temperature and high pressure method (HTHP) uses graphite as raw material, introduces suitable metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., and can synthesize diamond at temperatures above 2000K and tens of thousands of atmospheres.

CVD stands for chemical vapor deposition, which is based on a natural bare diamond. With the assistance of high-purity methane, hydrogen, nitrogen and other gases, the carbon molecules in methane and diamond are continuously accumulated on the original diamond in a high-pressure way in a microwave oven. After layer by layer proliferation, transparent diamond as large as 10 carats can be formed.

 

Parameters of HPHT CVD Loose Diamonds

 

HPHT CVD Loose Diamonds Details
Brand Name Yuda Crystal
Name Lab Grown Melee Diamonds
Diamond Color DEFG
Diamond Clarity VVS-VS
Diamond Carat Weight 0.10ct - 0.30ct
Diamond Cut Excellent, Very Good,Good
Polish Excellent, Very Good,Good
Symmetry Excellent, Very Good,Good
Technology HPHT
Size 3mm - 4mm
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)

 

HPHT CVD Loose 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 CVD Loose Diamonds Details

 

20 Pointer 30 Pointer HPHT CVD Loose Lab Diamonds Round Brilliant Cut D G Color 0

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