Round Brilliant Cut Full White Color VVS VS IGI Certified Lab Grown
Diamonds
Certified Lab Grown Diamonds Description
Diamonds are made of pure carbon in the shape of a tetrahedron.
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.
There are two main methods to make Rough Lab Grown HPHT Synthetic
Diamond: one is high pressure and high temperature method (HPHT),
the other is chemical vapor deposition method (CVD).
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. However, in the late
1980s, scientists discovered how to use a method called chemical
vapor deposition (CVD) to grow diamonds.
Colorless and almost colorless CVD synthetic diamonds are usually
type IIa, Type IIa diamonds are characterized by high purity, and
they exhibit transparency in certain parts of the ultraviolet and
infrared spectra.
For consumers, a professional diamond certificate can clearly show
the detailed characteristics of the diamond. So that people can
clearly know the quality of the diamonds they buy.
Parameters of Certified Lab Grown Diamonds
| Certified Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Certified Lab Grown Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 0.5-5.0 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 0.5-5.0carat per pcs |
| Shape | Round |
| Diamond Enhancement | None |
| Available Type | HPHT |
| Diamond Certificate | IGI |
| 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) |
Certified Lab Grown 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 | $$$$$ | $$$ |
Certified Lab Grown Diamonds Details
