Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)
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  • Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)
  • Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)
  • Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)
  • Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)
  • Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)

Pear Shape Diamonds, High Carbon Diamonds, High Quality Low Price, Gemstone Wholesaler (Price/Carat)

$35.90

Gemstone Material:Lab-Grown Diamonds

Gemstone shape: Pear Shape

Gemstone cutting: pear CUT

Gemstone Color: D color

Gemstone weight: Customizable size

Gemstone Clarity: VS1

Gemstone Polish: EX

Gemstone Symmetry: VG

Contact us for the best price:

Email - [email protected]

WhatsApp - +86 18078063669

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There are currently two methods of artificially growing diamonds in the world: high-pressure high-temperature (HPHT) and chemical vapor deposition (CVD).

 

The principle of HPHT is to completely simulate the natural mechanism of natural diamond growth underground. It generally requires 10GPa and a pressure and temperature of more than 3000℃ to allow the carbon atoms in graphite to recombine into the structure of diamond.

 

CVD chemical vapor deposition is formed by the deposition of carbon elements produced by methane combustion, which frees carbon atoms in carbon dioxide and reattaches them to diamond slices to make diamonds grow taller.

Two major schools of cultured diamonds:The bifference Between HPHT and CVD blamonds

Both types of diamonds are cultured diamonds, and their composition, properties, and appearance are exactly the same

as mined diamonds. They are both 100% diamonds!

properly

HPHT

 Chemical Vapor Deposition (CvD)

natural diamond

difference

cherical composilion

Carbon c

Carbon C

Carbon C

none

refaclive index

2.42

2. 42

2.42

none

relative densily

3. 52

3.52

3.52

none

dspersion

0. 044

0. 044

0.044

none

Hardness value

90 GPA

90 GPA

90 GPA

none

Thermal conductivity

2 x 103 W/M/K

2 x 103 W/M/K

2 x 103 W/M/K

none

Thermal expansion

0.8x 10-6 K

0.8x 10-6 K

0.8x 10-6 K

none

Transparency

DEEP UV TO FAR TR

DEEP UV TO FAR TR

DEEP UV TO FAR TR

none

Resistivity

1016 OHM-CM

1016 OHM-CM

1016 OHM-CM

none

Compressibility

8. 3 X 10-13 M2/N

8. 3 X 10-13 M2/N

8. 3 X 10-13 M2/N

none

Diamonds grown by both HPHT and CVD methods are real diamonds, just like natural diamonds mined from the ground.

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