1.0-4.0 Carat DEFGH VS SI Lab Grown HPHT Loose Diamonds For Jewelry
Lab Grown HPHT Diamonds Description
The diamond is considered to be the hardest material in the world.
Mohs hardness is divided into 10 levels, including diamond as the
highest level. Since it has been known that diamonds are made of
pure carbon, more and more people are studying diamonds at high
temperature and pressure in the laboratory. At present, the high
temperature and high pressure lab diamond raw materials industry
development is rapid, widely used in various industries and
processing industry.
Although laboratory cultivation of diamond is with natural diamond
different environment and conditions, but the natural diamond and
laboratory diamonds are crystals of pure carbon, their physical
properties, chemical properties, crystal structure and optical
properties are the same. Lab-grown diamonds and mined diamonds are
real diamonds.
Artificial diamond, in high temperature and high pressure diamond
is often referred to as laboratory, by imitating the natural
diamond crystallization process. Natural diamonds are formed in the
natural environment, often mixed with other elements together, and
makes some natural diamonds are not completely transparent, can
present a particular color. For example, some have pink diamonds,
some have a touch of blue, and some have light yellow. Diamonds are
grown in the laboratory under high temperature and pressure.
Impurity less than natural diamond, so more pure and transparent.
Natural diamond need millions of years to form. Before the
eruption, about 150 to 200 kilometers deep underground lava Wells
can slowly cooling in the crater, usually because the crater was
blocked. The pressure of pure carbon material is 4.5 * 10 ^ 6 ~ 9
Pa. When the temperature dropped to 1000 ~ 1250 ℃, the formation of
natural diamond crystals. Diamonds are formed under physical and
chemical conditions in some parts of the earth.
However, under natural conditions, producing natural diamonds in
the laboratory can now be simulated using high temperature and
pressure (HPHT) or chemical vapor deposition (CVD) techniques to
produce laboratory-produced gem-grade diamonds in just a few weeks.
Parameters Of Lab Grown HPHT CVD Diamonds
| Product Name | Synthetic (Lab created) Loose Diamond |
| Material | Lab Grown Loose Diamond |
| Diamond Color | DEFGH |
| Diamond Shape | Round |
| Diamond Technology | HPHT |
| Diamond Cut | Cut |
| Payment Terms | 100% Payment In Advance |
| Diamond Carat Weight | 0.1CT-4CTS |
| Diamond Clarity | VVS VS SI |
| Shipping way | DHL, FedEx, SF Express, UPS, EMS, TNT etc |
| M.O.Q | Negotiable |
| Delivery Time | 1-7 Working Days Depends On Quantity |
| Payment Methods | T/T, PayPal, Western Union, Bank Transfer |
| Used | Jewelry (necklace,ring,earring) |
| Application | For Sale |
| Place Of Origin | Zhengzhou, China |
Characteristics Of Lab Grown HPHT Diamonds
Laboratory cultivation of diamond is bred in the laboratory. People
use advanced equipment to simulate the natural diamond formation of
the environment. Laboratory-grown diamonds are usually produced in
a lab for several weeks. Natural diamonds are created by nature,
the result of billions of years of high temperature and pressure.
Both on the chemistry of the difference is the same.
So how do you distinguish between laboratory cultivation of diamond
and natural diamond?
Laboratory cultivation of diamond and natural diamond there was no
significant difference. Even professional gemologists also need
special equipment to identify them. By magnifying, professionals
will be able to recognize in the lab, growth and production of
diamond inclusions nuances.
| 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, synthetic diamond and natural
diamond exactly the same, the only difference is that the formation
of their position.
Loose Lab Grown HPHT Diamonds Details
