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0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
Specifications
Brand Name :
YUDA CRYSTAL
Model Number :
YD-A+
Certification :
None
Place of Origin :
Zhengzhou, China
MOQ :
Negotiate
Price :
Negotiate
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 :
HPHT CVD Diamonds Loose Diamonds
Brand :
Yuda Crystal
Grade :
High
Assortment :
Good
Color :
DEF
Clarity :
VVS VS
Carat Weight :
0.4ct, 0.5ct 1.0ct
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
Description

0.40ct 0.50ct 1.0ct D-E-F Color VVS VS SI Clarity HPHT CVD Diamonds Loose Diamonds

HPHT CVD 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.
Although laboratory-grown diamonds are formed in different environments and conditions from natural diamonds, both natural diamonds and lab diamonds are crystals composed of pure carbon, and the physical properties, chemical properties, crystal structure and optical properties of the two are the same. Both lab grown diamonds and mined diamonds are real diamonds.

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. HPHT diamonds are manufactured at a pressure of 5-6 GPA (approximately the pressure produced by a commercial jet landing on a human fingertip) and a temperature of 1300-1600°C.
CVD diamonds come from various gases, such as methane. They are stored in a vacuum chamber, which decomposes the molecules of the gas, and then these molecules gather on the pre-existing diamond seeds.

Parameters of HPHT CVD Diamonds

Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Lab Grown Melee Diamonds
Diamond Color DEF
Diamond Clarity VVS-SI
Diamond Carat Weight 0.4-1.0 carat
Diamond Cut Excellent, Very Good,Good
Polish Excellent, Very Good,Good
Symmetry Excellent, Very Good,Good
Technology HPHT
Size 4mm - 7mm
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)

HPHT CVD 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 Diamonds Details

0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond

Product tags

hv hardness

,

abs 1.75 mm 1kg

,

hardness hv
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0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond

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Product Detail
Brand Name :
YUDA CRYSTAL
Model Number :
YD-A+
Certification :
None
Place of Origin :
Zhengzhou, China
MOQ :
Negotiate
Price :
Negotiate
Contact Supplier
video
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond
0.40ct 0.50ct 1.0ct VVS VS SI HPHT CVD Loose Diamond

Henan Yuda Crystal Co.,Ltd

Verified Supplier
5 Years
henan, zhengzhou
Since 2016
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter, Seller
Main Products :
Rough Lab Grown Diamonds, Loose Lab Grown Diamonds, HPHT Lab Grown Diamonds
Total Annual :
50 Million-200 Million
Employee Number :
10~50
Certification Level :
Verified Supplier
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