Send Message
Home ProductsHPHT Rough Diamond

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

Certification
China Henan Yuda Crystal Co.,Ltd certification
China Henan Yuda Crystal Co.,Ltd certification
Customer Reviews
YUDA CRYSTAL IS FOREVER

—— Nilesh

Superb

—— Rajesh

I'm Online Chat Now

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace
DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

Large Image :  DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

Product Details:
Place of Origin: Zhengzhou, China
Brand Name: Yuda Crystal
Certification: None
Model Number: RBC
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, PayPal, Bank Transfer
Supply Ability: 50000carats per month

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

Description
Product Name :: HPHT Lab Grown Diamonds Color: DEF
Clarity: VVS VS SI Carat Weight: 1-6ct
Technology: HPHT Usage: For Cutting Lab Grown Diamonds
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 Hardness: Moh's 10 Scale
High Light:

SI Clarity HPHT Rough Diamond

,

DEF HPHT Rough Diamond

,

VVS HPHT Rough Diamond

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace

 

Lab Created Diamonds Description

 

Lab created diamond is a synthetic diamond that is cultivated in the laboratory to simulate the natural formation environment of natural diamond. It is mainly synthesized by HTHP method (high temperature and high pressure) and CVD method (chemical vapor precipitation method), also known as grown diamond. Natural diamonds are born about 160 kilometers below the surface. Every natural diamond is made of carbon, and over time, high temperatures and pressures in the earth's mantle crystallize that carbon to form natural diamonds, the hardest mineral in nature. Both lab created diamond and natural diamond are pure carbon crystals, and there is no obvious difference between them in crystal structure integrity, transparency, refractive index and dispersion. High-tech equipment can tell laboratory-grown diamonds from natural diamonds, but the naked eye can't tell the difference in appearance.

The difference between lab created diamonds and natural diamonds is mainly reflected in the production process and scarcity. Lab grown diamond production process takes about half a month to a month, simple, environmentally friendly, low cost, low scarcity. The formation of natural diamond takes millions or even billions of years. It is a non-renewable resource with high scarcity. Its mining process releases a large amount of carbon dioxide, causing irreversible damage to the surface. Compared with natural diamond, the higher cost performance makes lab grown diamond become a new choice in the diamond consumption field, which has broad prospects for development.

 

Parameters Of Lab Created Diamonds

 

Product Name Synthetic (Lab created) diamond
Material Lab-grown
Color D-H
Size 0.003PCS/CT-7CTS/PC
Grade VVS VS SI
Used Jewelry (necklace,ring)
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China

 

Characteristics Of Lab Created Diamonds

 

The Difference Between Lab Diamond And Natural Diamond
Attribute Lab Created Diamonds Natural diamond Distinction
Chemical composition C(carbon) C(carbon) No
Refractive index 2.42 2.42 No
Relative density 3.52 3.52 No
Dispersion 0.044 0.044 No
Hardness value 90 GPA 90 GPA No
Thermal conductivity 2*103 W/M/K 2*103 W/M/K No
Thermal property 0.8*10-6 K 0.8*10-6 K No
Light transmittance DEEP UV TO FAR TR DEEP UV TO FAR TR No

Resistivity

1016 OHM-CM

1016 OHM-CM

No

Compressibility

8.3*10-13 M2/N

8.3*10-13 M2/N

No

 

From a scientific point of view, cultivated diamonds are exactly the same as natural diamonds, the only difference being where they are formed.

 

Cultured diamond is a high quality synthetic diamond single crystal. At present, the global artificial diamond industry mainly has high temperature and high pressure method (HTHP) and chemical vapor deposition (CVD) two kinds of production methods. The two methods use completely different synthesis principles and technologies, and produce different product types and characteristics. The main industrial applications are also focused on different terminal fields. In the field of cultivating diamond synthesis, high temperature and high pressure (HTHP) cultivation speed is fast, and has obvious advantages in 1-5CT cultivation diamond synthesis; The purity of cultured diamond synthesized by chemical vapor deposition (CVD) is high, which is suitable for the synthesis of cultured diamond above 5ct. The two methods focus on different types of products and do not constitute a substitution relationship.

 

Lab Created Diamonds Details

 

DEF Color VVS VS SI Clarity HPHT Rough Diamond For Ring And Necklace 0

Contact Details
Henan Yuda Crystal Co.,Ltd

Contact Person: Ms. Pang

Send your inquiry directly to us (0 / 3000)