Types Of Lab Grown Diamond
Lab
grown diamonds is the next big thing in the jewellery world that is gaining
persistent importance on all fronts. The key feature in a man-made diamond is
its potential to be available in all seasons as they are generated in labs
which do not need a certain environment for their growth. The labs also have
the ability to produce Type II A diamonds manually. Type II A diamonds are the
diamonds that qualify as a high class of diamonds; Cullinan, Kohinoor and Lesedi La Rona to name a
few. Man-made diamonds are of various types; although, they still haven’t been
able to replicate all the natural diamonds.
There are two
main types of man-made diamonds, let’s take a closer look at them and also the
subtypes:
Simulant
diamonds
Simulant diamonds come closest
to representing the natural diamonds, the difference is probably not visible to
the naked eye. The simulant diamonds
are chemically and physically different from the mined diamonds. These diamonds
are made from alternate materials and aren’t particularly created from scratch.
They were first made in the 1970s as a replacement for the natural diamonds in
the Victorian age. Cut glass, zircon and white sapphires were used to make
the lab
grown diamonds.
Diamond
Nexus Stimulants
These diamonds are produced
from carbon mixed with additional ingredients. These stimulants have a triple
lifetime guarantee due to their extreme durability.
Cubic
Zirconia Stimulants
These diamonds are produced
from zirconium dioxide. They are the least durable type of the stimulant
diamonds, they also come at the lowest price.
Mossianite
Lab created gemstones
These stones are synthesized
from silicon carbide. Mossianite is
a very strong stimulant and this adds to its price, which is quite high as
well. Mossianite has a different look as it is a gemstone.
Cultured
diamonds
Cultured diamonds are created
from scratch and built in an environment that represents the environment in the
diamond mines. These diamonds are grown in a lab and have very similar physical
and chemical characteristics to that of natural diamonds. These diamonds are
specially inscribed with a number that denotes that they aren’t real, so that
they cannot be used for resale or insurance purposes. These diamonds are
created in two ways, stated below.
HPHT
diamonds
High pressure high temperature
diamonds are made in an environment that is similar to the environment
favourable for the production of mined diamonds. There are three main press
designs that are used to supply the pressure and the temperature required to
produce synthetic diamonds. They
are: the cubic press, the split-sphere press and the belt press. Diamond seeds
are placed at the bottom of the press.
CVD
diamonds
Diamonds are grown from a
hydrocarbon gas mixture in the chemical
vapour deposition method. This method is considered to be as the more
suitable choice for the industrial applications, flexibility and the simplicity
of the process. This is the reason why it is gaining popularity in the
laboratory research. HPHT still remains to be the preferred process for the
mass-production of diamonds crystals. The CVD
diamond growth enables the growth to happen over various substrates and
large areas. It also improves the control over the chemical impurities.
To sum it up, there are two
main distinctions of lab grown diamonds
which cover the umbrella of several other types of diamonds that are made in
labs. Even after being produced in a lab generated environment the diamonds
hold a very similar state of quality as the
mined diamonds!
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