Diamond FAQs
Q:
What is your policy on ‘Ethical’ Diamonds?
The Kimberley Process
(which addresses Conflict
Diamonds) is flawed,
and diamond mining itself
is environmentally destructive.
As such, we do not handle
freshly mined diamonds
at all, preferring instead
to use synthetic stones.
We will, however, use
recycled diamonds upon
request.
Q: Do you have white
diamonds?
We do have some lab created white diamonds available. If none are listed for the product in which you have an interest, please inquire.
Q:
Do Chatham Created Diamonds
and natural gems have
the same properties?
Yes. They have the same chemical, optical and physical
properties as their natural counterparts. The only difference
is that one came from the ground and the other from a laboratory.
Technical Comparison of Natural Diamonds vs. Chatham Created
Diamonds
| Characteristic |
Natural Diamond |
Created Diamond |
| Color |
Variable |
Variable |
| Luster |
Adamantine to waxy |
Adamantine to waxy |
| Composition |
Carbon |
Carbon |
| Crystal System |
Cubic |
Cubic |
| Hardness |
10 on Mohs Scale |
10 on Mohs Scale |
| Specific Gravity |
3.5 |
3.5 |
| Cleavage |
Perfect |
Perfect |
| Fracture |
Conchoidal |
Conchoidal |
| Refractive Index |
2.4 |
2.4 |
| Dispersion |
.044 |
.044 |
| Fluorescence |
Variable |
Variable |
| Melting Point |
3812 Kelvin |
3812 Kelvin |
Technical Comparison of Emeralds and
Rubies
Q:
Are Chatham Created
Diamonds synthetic?
Yes, but they are not ‘fake’ or ‘imitation’.
They are real diamonds.
Q:
How are these diamonds
made?
Natural
gemstones are crystals
formed deep within the
earth by heat and pressure.
These diamonds are made
by subjecting the same
elements to the same
heat and pressure. The energy consumed in the lab process, however, is rather modest. The growth chamber is only about 2x2 inches, so heating to 1300C is fairly easy, and pressure is created hydraulically, using little power.
Q:
How can I tell the difference
between natural and created
diamonds?
Only a trained gemologist with sophisticated equipment
can separate these diamonds from their natural counterparts
through the study of inclusions and trapped crystal imperfections,
which differentiate them from diamonds sourced elsewhere.
It’s rather like a fingerprint. Created diamonds are
distinct to their birthplace, just as natural diamonds from
varying geographical locations are unique to theirs.
Q:
Is a created diamond
like a cultured pearl?
That’s a very good analogy.
Just as we ‘seed’ an oyster to make a cultured
pearl, created diamonds are started from a man-made seed.
The culturing of a pearl starts with the implantation of
a ball in an oyster’s mantel tissue. While that ball
becomes the center of the resultant pearl, however, the diamond
seed is later removed.
Q:
Are the inclusions
added to make the diamond
seem more real?
No. They are a natural
result of the process.
Q: Are Chatham Created Diamonds treated or color enhanced?
Chatham Created Blue and Yellow Diamonds are not treated. Chatham Pink Diamonds are treated, but they do not exhibit the unstable color characteristics seen in treated natural diamonds. Chatham stones will not fade, and will not change color, even at temperatures up to 300° C.
Q:
Are Chatham Created Diamonds
guaranteed?
Yes. They are guaranteed
for life against chipping
and breaking under ordinary
circumstances.
Q: How do I know the
quality of my diamond?
greenKarat obtains a
grading report
from The European Gemological
Laboratory (EGL) or Gemological Institute of America (GIA) on every
diamond of ½ carat
or more. This report
is available for your
review at their respective websites,
and will be included
when we send you your
diamond ring.
Q:
How can I be sure that
my diamond isn’t
really sourced from a
mine, with all the social
and environmental baggage
that implies?
The
grading labs inscribe the
grading report number
on your diamond (don’t
worry, it’s so
small you won’t
notice it). That report
attests that your diamond
is ‘created’,
which is the assurance
you seek.
Q: Where can I learn
more about buying a diamond?
We suggest that you
visit the Consumer Education
Department at the independent
grading laboratory we
use. Click this link,
and a new browser window
will open at their site,
outside of greenKarat:
http://www.eglusa.com/consumereducation.html.
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