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1mm 0.005ct To 0.008ct Lab Grown Melee Diamonds Excellent Cut DEF VVS VS

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1mm 0.005ct To 0.008ct Lab Grown Melee Diamonds Excellent Cut DEF VVS VS

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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 : Lab Grown Melee Diamonds

Brand : Yuda Crystal

Grade : High

Assortment : Good

Color : DEF

Clarity : VVS VS

Carat Weight : 0.005-0.008ct

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

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1mm DEF Color VVS VS Clarity Excellent Cut Lab Grown Melee Diamonds For Making Lab Diamond Jewelry

Lab Grown Melee Diamonds Description

Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both laboratory-grown diamonds and natural diamonds are real diamonds. The main chemical components of laboratory-grown diamonds and natural diamonds are carbon.

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 another method of making diamonds in the laboratory. The growth of this kind of diamond requires proper pressure and temperature of the hydrocarbon gas mixture in the vacuum chamber. In detail, CVD diamonds are grown in a vacuum chamber filled with a mixture of hydrocarbons. An energy source breaks down the gas molecules, and the carbon atoms are adsorbed down to the flat diamond seeding disk at a lower temperature. The crystallization process takes several weeks, and multiple crystals grow at the same time.

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 cycles, and the entire growth process takes three to four weeks.

Parameters of Lab Grown Melee Diamonds

Lab Grown Melee Diamonds Details
Brand Name Yuda Crystal
Name Lab Grown Melee Diamonds
Diamond Color DEF
Diamond Clarity VVS-SI
Diamond Carat Weight 0.005-0.008 carat
Diamond Cut Excellent, Very Good,Good
Polish Excellent, Very Good,Good
Symmetry Excellent, Very Good,Good
Technology HPHT
Size

1mm
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 Grown 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 Grown Melee Diamonds Details

1mm 0.005ct To 0.008ct Lab Grown Melee Diamonds Excellent Cut DEF VVS VS


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0.008ct Lab Grown Melee Diamonds

      

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