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| Price | Negotiate |
| MOQ | Negotiate |
| Delivery Time | 1-7 Working Days Depends On Quantity |
| Brand | YUDA CRYSTAL |
| Place of Origin | Zhengzhou, China |
| Certification | IGI |
| Model Number | YD-A+ |
| Packaging Details | Carton box |
| Payment Terms | 100% Payment In Advance |
| Supply Ability | 50000carats per month |
| Shape | Round Brilliant Cut | Customization | Welcome |
| Packaging Details | Carton box | Supply Ability | 50000carats per month |
| Place Of Origin | Zhengzhou, China | Technology | HPHT |
| Minimum Order Quantity | Negotiate | Component | Carbon |
| Courier | DHL, FedEx, UPS, TNT, EMS etc | Enhancement | None |
| Payment Mode | T/T, Bank Transfer, PayPal, Western Union | Symmetry | Excellent, VeryGood, Good |
| Usage | For Making Lab Diamonds Jewelry ( Rings, Earring, Necklace etc ) | Place of Origin | Zhengzhou, China |
| Cut | Ideal, Excellent, VeryGood, Good | Polish | Excellent, VeryGood, Good |
| Available Type | HPHT | Product Name | Certified Lab Grown Diamonds |
| Color | DEF | Grade | High |
| Treatments Applied | None | Model Number | YD-A+ |
| Hardness | Moh's 10 Scale | Sample Order | Welcome |
| Clarity | VVS VS | Certification | IGI |
| Brand Name | YUDA CRYSTAL | Payment Terms | 100% Payment In Advance |
| Brand | Yuda Crystal | Assortment | Good |
| Price | Negotiate | Delivery Time | 1-7 Working Days Depends On Quantity |
| Packaging | As Export Standard | Carat Weight | 1.5-2.0ct |
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
