DEF VS-SI 1.2mm 1.3mm 1.4mm Man Made Melee Diamonds For Diamond
Rings
Man Made Melee Diamonds Description
Diamonds are famous all over the world as luxury and precious
jewelry. However, it is also the hardest substance in nature, a
good heat conductor and an inert substance. These characteristics
mean that diamonds can play an important role in some industrial
applications, such as metal cutting, drilling, grinding, mining and
construction, as well as applications in high-pressure testing and
high-performance bearings.
Lab grown diamonds is usually produced by chemical vapor deposition
(CVD) or high pressure high temperature (HPHT).
For a long time, people believed that diamonds could only be
created under high pressure and high temperature conditions,
imitating the formation of natural diamonds. This is called
HPHT(high pressure and high temperature) method.
However, in the late 1980s, scientists discovered how to use a
method called chemical vapor deposition (CVD) to create diamonds.
Diamonds produced by CVD are produced by mixing hydrocarbons,
usually methane, with hydrogen in a low-pressure vacuum chamber.
The diamond will grow in a few days until it reaches the size
required for the specific application. Normally, when methane and
hydrogen are mixed, carbon is produced in a non-diamond form, such
as graphite. In the CVD chamber, microwave energy, electric
discharge, or hot cathode is used to generate hydrogen atoms, which
react with non-diamond carbon to form vapor. Highly active
hydrocarbon vapors will further react with hydrogen atoms,
resulting in the separation of hydrogen and pure carbon, and pure
carbon is deposited as diamonds. With the repetition of this
process, the diamond can grow into different sizes according to the
required application.
Parameters of Man Made Melee Diamonds
| Lab Grown Melee Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Lab Grown Melee Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VS-SI |
| Diamond Carat Weight | 0.080-0.015 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 1.2mm - 1.4mm |
| Shape | Round |
| Diamond Enhancement | None |
| Available Type | HPHT |
| Diamond Certificate | None |
| Application | Jewelry Decorations Rings Earring Necklace |
| 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) |
Man Made Melee Diamonds Introduction
Natural diamonds are created by nature and are the result of high
temperature and pressure formed over billions of years. The 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 Lab Grown Diamonds and natural
diamonds?
There is no obvious difference between the 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 | $$$$$ | $$$ |
Man Made Melee Diamonds Details
