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Locations: |
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| Colors
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| Family: |
Carbon |
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Hardness: |
10.00 |
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Refractive Index: |
2.41 |
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Relative Density: |
3.50 |
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The word Diamond comes from the Greek word
“adamas” meaning unconquerable or invincible.
"Diamonds are forever", sang Shirley Bassey, while Marilyn insisted they
were "a girl's best friend". Celebrated in song, over the last century,
Diamond (April’s birthstone) has become the most marketed of gemstones.

The myths and facts associated with the Diamond transcend cultures and
continents.
The world’s first known reference to this gemstone comes from an Indian
Sanskrit manuscript, the Arthsastra (which translates as The Lesson of
Profit) written by Kautiliya, a minister to Chandragupta of the Mauryan
Dynasty (322 BC – 185 BC).
Plato wrote about Diamonds as living beings, embodying celestial spirits.
Roman literature makes its first distinct mention of Diamonds only in the
1st century AD, in reference to the alluvial Diamonds found in India and
Borneo.
The ancient Greeks and Romans believed they were tears of the Gods and
splinters from falling stars. Cupids' arrows were supposed to be tipped
with Diamonds, thus having a magic that nothing else can equal.
The Hindus believed that they were created when bolts of lightning struck
rocks. They even placed it in the eyes of some of their statues.
Jewish high priests turned to Diamonds to decide the innocence or guilt of
the accused. A Diamond held before a guilty person was supposed to dull
and darken, while a Diamond held before an innocent glowed with increasing
brilliance.
The Romans wore Diamonds because these were thought to possess broad
magical powers over life’s troubles, being able to give to the wearer
strength, invincibility, bravery and courage during battle.
Kings of antiquity led the battles wearing heavy leather breastplates
studded with Diamonds and other precious gems because it was believed that
Diamonds possessed God given magical qualities and powers far beyond the
understanding of humankind. Thus, warriors stayed clear of Kings and those
who were fortunate enough to have the magical Diamonds in their
breastplates.
An act of Louis IX of France (1214 - 1270) established a sumptuary law
reserving Diamonds for the King indicates the rarity and value of this
gem.
Until the 14th century only Kings could wear Diamonds, because they stood
for strength, courage and invincibility. Small numbers of Diamonds began
appearing in the 14th century in European regalia and jewelry, set mainly
as an accent point among Pearls. But the possession of extraordinarily
large and noble Diamonds was always the privilege of royal houses and
particularly rich families. As an example, the imperial crown of the
Russian Tsarina Catherine the Second (1729 - 1796) was mounted with 4,936
sparkling Diamonds.
In the Middle Ages and the Renaissance, every ring set with a precious gem
was not considered as much a piece of jewelry, but more as an amulet that
bestowed magical powers upon its wearer. When set in gold and worn on the
left side, it was believed that Diamonds held the power to drive away
nightmares, to ward off devils, phantoms and soothe savage beasts. A house
or garden touched at each corner with a Diamond was supposed to be
protected from lightning, storms and blight. Diamonds were also supposed
to impart virtue, generosity, as well as to calm the mentally ill and even
to determine lawsuits in the wearer's favor.
Not only was it commonly believed that Diamonds could bring luck and
success, but also that they could counter the effects of astrological
events.

You may have heard about the 4 C’s related to valuing
gemstones and in particular, Diamonds. While other factors such as origin
sometimes need to be taken into consideration when valuing colored
gemstones, below is a basic guide to the four C’s that gemstone
professionals and connoisseurs the world over rely on: cut, color, clarity
and carat weight.
Color
Colorless and near-colorless Diamonds are rare,
beautiful and highly prized among connoisseurs. To the untrained eye, most
Diamonds look white. However, to the professional there are small
differences in the degrees of whiteness seen.
Cut
With round
brilliant cut Diamonds accounting for over 80% of Diamond sales worldwide,
ask a women “what shape is a Diamond?” and she’ll probably say round.
Despite this figure, there are many other beautiful Diamond cuts that
warrant serious consideration. The eight most popular Diamond cuts are
emerald cut, heart cut, marquise cut, oval cut, round brilliant cut, pear
cut, princess cut and radiant cut.
Unlike colored gemstones, Diamonds are cut, shaped and proportioned to a
remarkably uniform ideal. In 1919, Marcel Tolkowsky published his opinions
of what Diamond proportions result in the optimum balance of brilliance
and fire.
Carat Weight
As mentioned above, unlike Gemstones, Diamonds are cut to a uniform ideal
for maximum brilliance (white light reflections), fire (flashes of color)
and scintillation (patterns of light and darkness). With this uniform
cutting and proportions, we can very conveniently and accurately equate
Diamond carat size with their millimeter size.
|
Round Brilliant
Cut Diamond |
| 1 mm |
2 mm
|
3 mm
|
4 mm
|
5 mm
|
6 mm
|
6.5 mm
|
7 mm
|
7.5 mm |
| 0.01 Ct |
0.03 Ct |
0.10 Ct
|
0.25 Ct |
0.50 Ct |
0.75 Ct
|
1.00 Ct
|
1.25 Ct |
1.65 Ct |
Clarity
Inclusions are tiny natural irregularities within the body of a Diamond.
Nearly all gemstones contain some inclusions, however many are microscopic
and can only be seen under magnification. While the prevalence and
acceptability of inclusions varies from gemstone to gemstone, in general,
if they do not interfere with the beauty of a gemstone, they are not only
accepted but are also a fascinating hallmark of authenticity that records
a gem’s natural relationship with the earth.
What Is The GIA Diamond Grading System?
Developed by the GIA (Gemological Institute of America), this system is
now commonplace for the retailing of Diamonds across the globe and
consists of a Diamond Clarity Scale and a Diamond Color Scale.
GIA Diamond Clarity Scale
(FL) FLAWLESS: Shows no
inclusions or blemishes of any sort under 10X magnification when observed
by an experienced grader.
(IF) INTERNALLY FLAWLESS: Has no inclusions when examined by an
experienced grader using 10X magnification, but will have some minor
surface blemishes.
(VVS1 and VVS2) VERY VERY SLIGHTLY INCLUDED: Contains minute inclusions
that are difficult even for experienced graders to see under 10X
magnification.
(VS1 and VS2) VERY SLIGHTLY INCLUDED: Contains minute inclusions such as
small crystals, clouds, or feathers when observed with effort under 10X
magnification.
(SI1, SI2 and SI3) SLIGHTLY INCLUDED: Contains inclusions (clouds,
included crystals, knots, cavities, and feathers) that are noticeable to
an experienced grader under 10X magnification. The SI3 Diamond clarity
grade was created because many in the Diamond industry felt that there was
too wide a gap between SI2 and I1. After the EGL (European Gemological
Laboratory) started issuing certificates with the SI3 grade, the Rapaport
Diamond Report (the definitive price guide for Diamonds) added SI3 to its
price list.
(I1, I2, I3) INCLUDED: Contains inclusions (possibly large feathers or
large included crystals) that are obvious under 10X magnification.
(PK) PIQUE: Inclusions easily visible to the naked eye.
GIA Diamond Color Scale
Prior to the introduction of the GIA grading system, the letters A, B and
C were used to grade Diamonds. As the GIA wanted a fresh start, they
decided to begin with the letter D.
D, E, F. These purest tints are rare and comparatively expensive. Their
rare color assigns them a higher market price.
G, H, I. Often offering much better value, to the untrained eye they seem
the exact same color as the more expensive D, E and F colors.
J, K, L. Discounted for their barely perceivable yellowish tints, Diamonds
in this range offer excellent value.
M - Z. Further discounted for their more distinct yellow hues. Diamonds
outside the normal color range are called “fancy colors” and come in about
any color you can imagine (e.g. pink, red, green, purple, black, blue,
yellow and more).
Pairs & Suites
Pairs or suites of Diamonds matched for color, clarity and cut are more
highly valued per carat or per gem than single Diamonds of the same
quality. Given the rarity of many Diamonds, a matching set is
disproportionately hard to find and thus commands a higher per carat price
than if each of the Diamonds from the suite were sold separately.
Colored Diamonds
Most Colored Diamonds found in jewelry today are
normally treated. The process known as color enhancement involves using
clean Diamonds and modifying their color with a combination of electron
bombardment and heat using safe electron-accelerator technology. This
enhancement exactly duplicates the “natural process” Colored Diamonds
undergo during their formation within the earth. All color enhanced
Diamonds sold by GemsTV are treated in the USA to certified international
standards.
Unlike some other Diamond treatments, Color Enhanced Diamonds are treated
to fulfill preferences for vivid color only; this coloring technique does
not try to hide or dissipate flaws. The myriad of popular Diamond colors
produced using this technology includes blue, green, red, orange, yellow,
pink, purple and black. The real beauty and popularity of these Diamonds
lies in the fact that they combine both the rich color hues of colored
gems such as Rubies and Sapphires, with the unforgettable brilliance and
sparkle of a Diamond. In other words, they virtually become “two gems in
one”.
What Are Conflict Diamonds?
A Conflict Diamond (also
called a Blood Diamond) is a Diamond mined in a war zone and sold, usually
clandestinely, in order to finance an insurgent or invading army's war
efforts. The Kimberley Process is a global system to eradicate Conflict
Diamonds and has two parts:
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A government-regulated system adopted in 2000
by more than 40 countries, the United Nations, and the Diamond
industry to control the export and import of rough Diamonds across
borders. It requires that rough Diamonds mined after January 1, 2003
be shipped in tamper-resistant containers and accompanied by
government-validated Kimberley Process Certificates. Only
participating countries may legitimately export rough Diamonds and
only to co-participating countries.
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To strengthen the government program, the international Diamond and
jewelry industry represented by the World Diamond Council (WDC) initiated
and committed to a voluntary system of warranties. It requires that every
time Diamonds (i.e. rough, polished or Diamond jewelry) change hands, the
seller will affirm on the invoice that the Diamonds have been purchased
through authorized channels not involved in funding conflict.
GemsTV is Kimberley Process compliant and our
independent auditors verify our maintenance of warranties.
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