1.5ct 2.0ct Round Brilliant Cut Certified Lab Grown Diamonds For
Making Lab Diamond Rings
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.
HPHT is the primary method used to grow rough diamonds in a
laboratory. At present, the world's popular high-temperature and
high-pressure synthetic diamond equipment mainly includes two side
top, six side top and bar split sphere or improved split sphere.
CVD (chemical vapor deposition) diamond is based on a natural bare
diamond. With the assistance of high-purity methane, hydrogen,
nitrogen and other gases, the carbon molecules in methane and
diamond are continuously accumulated on the original diamond in a
high-pressure way in a microwave oven. 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 start/stop cycles, and the entire growth process
takes three to four weeks. In order to make CVD diamond grow
smoothly, methane with diamond structure is often used as carbon
source. Methane can be regarded as a monatomic diamond pressed out
by hydrogen. The quality of lab diamonds is almost the same as that
of natural diamond, which is hard to distinguish with the naked
eye.
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,GHIJ |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 1.5-2.0 carat |
| Diamond Cut | Excellent, Very Good,Good |
| Polish | Excellent, Very Good,Good |
| Symmetry | Excellent, Very Good,Good |
| Technology | HPHT |
| Size | 1.5-2.0carat 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
