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Mined Diamonds |
Cultured Diamonds |
Cubic Zirconia |
| Hardness |
10 |
10 |
8.5 |
| Index of Refraction |
2.42 |
2.42 |
2.17 |
| Dispersion |
0.044 |
0.044 |
0.07 |
| Specific Gravity |
3.52 |
3.52 |
5.8 |
| Main Chemical Component |
Carbon |
Carbon |
Zirconium Oxide |
| Cleavage |
Octahedral |
Octahedral |
None |
| Available Since |
N/A |
2004 |
1977 |
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Are Cultured Diamonds real diamonds?
Yes. Cultured diamonds are diamonds grown under laboratory conditions and share
the identical optical, chemical, and physical properties of earth grown
diamonds. These properties include unequaled hardness, fire, brilliance, and
scintillation, as those produced by nature 100's of kilometers below the
earth's surface. The difference is where they are grown.top
^
What is Cultured Diamond?
A cultured diamond is a diamond grown in a prepared medium of temperature and
pressure similar to those conditions that prevail beneath the earth's surface
when diamonds form. Carbon, in the form of graphite, is present. The carbon
liquefies and is deposited atom by atom, layer by layer on a tiny diamond
“seed” in the crystalline structure of a diamond.
Cultured diamonds have the same physical, chemical and optical properties of
mined diamonds. Both are grown within a matter of days; however mined diamonds
take millions of years to be found and extracted from the earth. The rough
cultured diamond undergoes the same processes of cutting and polishing as a
mined diamondtop
^
Cultured, lab-grown, lab-created?
All these terms are correct terminology for laboratory grown diamonds as they
are grown in a laboratory in a prepared medium of temperature and pressure.
Cultured or synthetic?
The primary meaning of the term “synthetic” is “something resulting from
synthesis” or “made by chemical synthesis”. “synthesis” in turn means a
“combination of components to form a connected whole” or “the production of
chemical compounds by reaction from simpler materials” . In order for something
to be described as “synthetic” it must result from or be made by “synthesis”.
Synthesis involves the combination of different components to form a whole or a
reaction of simpler materials to form a chemical compound.
No synthesis takes place in the growth process of cultured diamonds as there is
no combination or reaction of different materials. Diamond is composed of
carbon only as opposed to other precious stones such as ruby that are a
compound of different elements. It is therefore argued that to refer to a
laboratory grown diamond as “synthetic” is both misleading and factually
incorrect. The term “cultured” is defined in the Merriam- Webster online
dictionary as “grown within a prepared medium”. Cultured diamonds are grown in
a prepared medium of temperature and pressure that mimics the condition in
which diamonds form deep below the earth's surface.top
^
Will a cultured diamond test positive on a diamond tester?
Yes. A diamond - tester will confirm that this is a real diamond.
How hard is a cultured diamond?
Cultured diamonds rate 10 or 10+on the mohs Scale. The 10+ aspect refers to
previous findings by the GIA and others that lab-grown diamonds are slightly
harder and less brittle than mined diamonds. This can be a result of ideal
nitrogen dispersion in lab-grown diamonds, therefore forming a perfect crystal
structure.
Is it another simulant of a natural diamond like Cubic Zirconium,
Moissanite etc?
No. Cubic zirconium, moissanite, flanit, and Yttrium Zirconium Oxide (YZRO2)
are not diamonds but are simulants trying to duplicate the visual the
properties of real diamonds.
What is the importance of cultured diamonds in the current diamond
Consumer market?
Gem quality mined diamonds are generally white in colour Cultured diamonds are
available in intense fancy colours that match the most spectacular found in
nature. The introduction of fancy colour cultured diamonds adds a new dimension
to the world of diamond jewellery and jewellery design. The fact is that the
availability of affordable intense fancy colour diamond is an opportunity to
the diamond jewellery industry, not a threat.top
^
What colours are available?
currently cultured diamonds are produced in yellow and orange . Blue, green and
pink diamonds are in a development phase and are available in limited
qualities.
How many carats are being produced?
Cultured diamonds are a rare reality. The supply of the product is extremely
limited - a few thousand carats per annum compared to the 100 million carats of
gem quality mined diamonds.
How will i know it is culture diamond and its quality?
Cultured diamonds are diamonds of know origin. The unique number, laser
inscribed on the girdle of each diamond, enables the origin of that diamond to
be traced back to the laboratory in which it was grown thereby ensuring supply
chain integrity. As with mined diamond, a certificate accompanies all stones
sold.
What is the Cultured Diamond Foundation?
The Cultured Diamond Foundation is an international body established to ensure
that the highest ethical standards prevail within the cultured diamond industry
and will provide an objective source of information to both industry and
consumer.
One of the services which will be provided by CDF will be to grade cultured
Stones. The foundation will ensure full disclosure of the nature of the product
and issue authentication and granding reports on cultured diamonds. Each
diamond graded by the foundation is laser inscribed on the girdle with the
words “cultured diamond”, the foundation logo and a unique number that enables
the diamond to be traced back to the laboratory in which it was grown.top
^
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