1mm DEF Color VVS VS Clarity Excellent Cut Lab Grown Melee Diamonds
For Making Lab Diamond Jewelry
Lab Grown Melee Diamonds Description
Lab-grown diamonds are diamonds grown in the laboratory using
equipment that simulate the growth environment of natural diamonds.
Both laboratory-grown diamonds and natural diamonds are real
diamonds. The main chemical components of laboratory-grown diamonds
and natural diamonds are carbon.
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. In detail, CVD diamonds are
grown in a vacuum chamber filled with a mixture of hydrocarbons. An
energy source breaks down the gas molecules, and the carbon atoms
are adsorbed down to the flat diamond seeding disk at a lower
temperature. The crystallization process takes several weeks, and
multiple crystals grow at the same time.
Every few days, the diamond is taken out, the top surface of the
diamond is polished, and the non-diamond carbon elements are
removed from it, and then returned to the growth chamber. Each
batch of diamonds may need to go through several cycles, and the
entire growth process takes three to four weeks.
Parameters of Lab Grown Melee Diamonds
| Lab Grown Melee Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Lab Grown Melee Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 0.005-0.008 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 1mm |
| Shape | Round |
| Diamond Enhancement | None |
| Available Type | HPHT, CVD |
| 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) |
Lab Grown Melee 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 Melee Diamonds Details
