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Fancy Dark Brown Greenish Yellow Rough Diamonds 1 Carat Man Made

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 1-7 working days
Payment Terms : T/T, Western Union Supply Ability : 50000carats per month
Place of Origin: Zhengzhou, China Brand Name: YUDA CRYSTAL
Certification: None Model Number: YD-A+

Detail Information

Product Name: Colored Lab Grown Rough Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: Yellow Clarity: VVS VS SI
Carat Weight: 0.80-1.5ct Cut: Uncut
Technology: HPHT Shape: Rough, Raw
Usage: For Cutting Fancy Color Lab Diamonds 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: None
Symmetry: None Sample Order: Welcome
Treatments Applied: None Enhancement: None
High Light:

Yellow Rough Diamonds 1Carat


1.5ct Yellow Rough Diamonds


0.80ct Brown Diamonds Man Made

Product Description

1 Carat Fancy Dark Brown Greenish Yellow Colored Lab Grown Rough Diamonds Vs Si Clarity


Colored Lab Grown Rough Diamonds Description


Laboratory grown diamonds are not mined from the earth. Laboratory grown diamonds are not fakes, not cubic zircons, not crystals. They have the same chemical composition as natural diamonds. Laboratory diamonds are made in the laboratory. It starts with a small chemical called diamond seed. Then it's exposed to high temperatures, plus a layer of carbon coating, all of which are designed to help laboratory made diamonds crystallize as they grow.
Diamonds grown in the laboratory have the same optical and chemical composition as diamonds produced on earth.
Although scientists have been using this method since Mid-1900, the diamonds originally made are pumpkin colored. Only in recent years have scientists found a way to make white diamonds. There are two main ways to make laboratory grown diamonds. One is to use ultra-high pressure and high temperature to simulate the natural diamond growth environment and dissolve carbon into diamond seeds; Another method is to put the diamond seeds into a special diamond microwave oven, inject carbon gas into the microwave oven and stick it on the seeds to slow down the growth of the seeds.


Parameters of Colored Lab Grown Rough Diamonds


Lab Made Fancy Colored Diamonds Details
Brand Name Yuda Crystal
Name Lab Made Fancy Colored Diamonds
Diamond Color Yellow, Greenish, Brown
Diamond Clarity VVS-SI
Diamond Carat Weight 0.8-1.0 carat 
Diamond Cut Uncut
Technology HPHT
Size 5.0-7.0mm
Shape Raw
Application For Cutting Lab Grown Loose Diamonds
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)


Colored Lab Grown Rough 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 $$$$$ $$$


Colored Lab Grown Rough Diamonds Details


Fancy Dark Brown Greenish Yellow Rough Diamonds 1 Carat Man Made 0

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