Send Message
Home ProductsHPHT Rough Diamond

2.5ct 3.0ct VS SI HPHT Rough Diamond

China Henan Yuda Crystal Co.,Ltd certification
China Henan Yuda Crystal Co.,Ltd certification
Customer Reviews

—— Nilesh


—— Rajesh

I'm Online Chat Now

2.5ct 3.0ct VS SI HPHT Rough Diamond

2.5ct 3.0ct VS SI HPHT Rough Diamond
2.5ct 3.0ct VS SI HPHT Rough Diamond 2.5ct 3.0ct VS SI HPHT Rough Diamond 2.5ct 3.0ct VS SI HPHT Rough Diamond

Large Image :  2.5ct 3.0ct VS SI HPHT Rough Diamond

Product Details:
Place of Origin: Zhengzhou, China
Certification: None
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
Supply Ability: 50000carats per month

2.5ct 3.0ct VS SI HPHT Rough Diamond

Product Name: HPHT Synthetic Diamond Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VVS-SI
Carat Weight: 2.5-3.0ct Cut: Uncut
Technology: HPHT Shape: Rough, Raw
Usage: For Cutting Lab Grown 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:

VS SI HPHT Rough Diamond


3.0ct HPHT Rough Diamond


HPHT 2.5 ct lab diamond

2.5-3.0ct Vs Si Clarity HPHT Rough Diamond For Cutting Carat Hpht Loose Diamonds


Lab Grown Rough 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, which reproduces the natural conditions for the formation of diamonds under the mantle and crust. These synthetic diamonds are made up of actual carbon atoms, which are arranged in the unique crystal structure of diamonds. Because they are made of the same material as natural diamonds, they have the same optical and chemical properties.

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. Like the HPHT diamond manufacturing method, the CVD manufacturing method is constantly improving, allowing manufacturers to create larger gems with greater improvements in color and clarity.


Parameters of Lab Grown Rough Diamonds

HPHT Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Rough Lab Grown Diamonds
Diamond Color D-F
Diamond Clarity VVS-SI
Diamond Carat Weight 2.5-3.0 carat
Diamond Cut Uncut
Technology HPHT
Size 5.0-10.0mm
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)


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 $$$$$ $$$


Lab Grown Rough Diamonds Details


2.5ct 3.0ct VS SI HPHT Rough Diamond 0

Contact Details
Henan Yuda Crystal Co.,Ltd

Contact Person: Ms. Pang

Send your inquiry directly to us (0 / 3000)