How to appreciate a jewel


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How Do Jewelers Rate Diamonds?

We began our search by entering "diamondcrystal will reveal the print clearly. A
ratings" into the search box. The results ledsimilar test uses a small light, such as the
us to online gift retailers, where we quicklyone that comes with your key ring. If you
found a useful page on on the "4 C's" ofshine the light through the stone and cannot
diamond evaluation: color, clarity, cut, andsee it on the other side, but only a bright
carat.halo around the rim, it is more likely to be
a  true  diamond.
From that document, we got the sense that the
most reputable ratings are performed byDiamonds are also very good at conducting
independent laboratories such as theheat. Breathe on the surface of the stone and
Gemological Institute of America (GIA) andimmediately check to see if it has fogged up.
the European Gemological Laboratory (EGL). WeAgain, quartz, glass, and cubic zirconium
returned to search engines and searched onwill stay hazy for a moment before the
the names of these groups. We found bothcondensation dissipates, but you shouldn't be
listed under the Gemology - Organizationsable to see any moisture on a true diamond.
category.However, one rock, called moissanite, will
also pass this test, so the best way is to
A visit to the Gemological Institute ofget a complete thermal conductivity
America site left us a little disappointed.evaluation  performed  by  a  jeweler.
They seemed to offer a great deal of
information on their course offerings, butLooking closely at the specks, ridges, and
little  in  the  way  of  reference material.facets can also give you a clue into the
identity of your gem. Diamonds do have
The EGL site was also underwhelming. Still,inclusions, tiny bits of other minerals that
if you find yourself coming across EGL or GIAgot crushed into the diamond while it formed
reports in the course of your diamonddeep under the earth. However, if the facets
hunting, it's probably a good idea tohave worn or rounded edges, bubbles, or if
familiarize yourself with thesethe gem looks rippled or pitted, it is
organizations.probably glass. Those gems that are perfectly
clear, with absolutely no inclusions, are
Ultimately unsatisfied with the results ofprobably  quartz.
our search, we decided to browse more.
Happily, before long we found a nice siteFinally, some common sense measures can
that offers information on the 5 C's (theyprevent you from getting pressured to
added "cost"), diamond shapes, "How to Buy apurchase a gem that turns out to be something
Diamond," and "How to Read a Diamondother than a diamond. It shouldn't be
Certificate."ridiculously inexpensive, or you'll get what
you pay for. It also will usually be mounted
The only people who can authenticate a realin an "open back" setting, which means that
diamond are certified gemologistsyou can see around the rear of the gem and
specializing in jewelry. However, if you arethe back surface isn't coated with any
browsing rings at a flea market and want tosilvery substance. Although it's true that
quickly assess whether a clear stone isdiamonds are the hardest organic substance on
probably glass, cubic zirconium, quartz, orearth, the infamous test of scratching
leaded crystal, there are a few easy testsdiamonds across glass or metal might just
you can apply without any special equipment.give  you  a  damaged  diamond.
These tests at least rule out recognizable
imposters because they rely on the way a realEven many gemologists cannot distinguish
diamond stone refracts light, conducts heat,"real" diamonds from cultured diamonds.
and  looks  up-close.Cultured diamonds have been artificially
manmade in a laboratory, not mined from
If the gem in question is loose andmountains, yet they are chemically identical
unmounted, try placing it over printing.to those diamonds. Some companies are
Diamonds refract so much light that they willdeveloping new kinds of identification
not work as a magnifying glass and you wouldmethods for those who would like to purchase
see no lines, circles, or letters througha mined diamond or for those that prefer a
them. Other clear stones like glass orcultured one.



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