3 Carat 4 Carat And 5 Carat Big Size Gem Quality Rough Lab Grown
Diamonds VS SI Purity
Rough Lab Grown Diamonds Description
1. What is cultivating diamond?
Diamond is cultivated in the laboratory, the advanced technology is
used to simulate the environment of natural diamond formation in
the equipment, and the diamond crystal is used as seed to induce
diamond crystal growth. The physical and chemical properties of
cultivated diamonds are the same as those of natural diamonds. With
the progress of science and technology, the purity and color of
cultivated diamonds are getting higher and higher, which can be
used for jewelry.
At present, there are two main methods to produce and cultivate
diamonds on the market: high temperature and high pressure method,
referred to as HPHT; chemical vapor deposition, referred to as CVD.
Nowadays, the large carat cultivation diamond growth technology has
realized the mass production of white, yellow, blue, green, purple
red and other color cultivation diamonds. The color of white
diamonds can reach D-E level and the clarity can reach vvs-si
level.
2. Is it easy to distinguish cultivated diamond from natural
diamond?
Many people have similar doubts: since diamonds can be cultivated
artificially, can they be mixed with natural diamonds? If I want to
buy natural diamonds, will I buy cultivated diamonds at the price
of natural diamonds?
In fact, there is no need to worry about this. Now the quality
inspection institutions use professional instruments to test the
diamonds. By comparing the crystal shape, internal growth
characteristics, inclusion characteristics, absorption spectrum,
cathodoluminescence and other aspects of the tested diamonds, they
can completely distinguish cultivated diamonds from natural
diamonds. After all, natural diamonds are formed in a relatively
stable environment deep underground for a long time. Natural
diamonds have a long history, and the youngest diamonds are
billions of years ago. However, it only takes a few weeks or even
days to cultivate diamonds. There are subtle differences in the
growth environment between the two, which can be distinguished by
professional detection methods.
Parameters of Rough Lab Grown Diamonds
| Rough Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS VS SI |
| Diamond Carat Weight | 3.0-4.0ct, 4.0-5.0ct |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 5.0-20.0mm |
| Shape | Raw |
| Application | For Cutting Lab Grown Loose Diamonds |
| 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) |
Rough 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 | $$$$$ | $$$
|
Rough Lab Grown Diamonds Details
