Education

Diamonds are the hardest natural material among all the minerals in the world.
The diamond is a mineral composed mainly of carbon.
It takes 100 million years for a diamond to be created.

Diamonds are created in unique conditions, requiring a pressure of 100,000 atm. and a temperature of 2,5000C. Such conditions are found only deep in the core of the earth at a depth of 150-200 km., usually beneath the world’s most ancient continental plates, such as in South Africa, Siberia, Canada and Brazil.

The Conditions Needed To Create A Diamond Are:
Extreme Heat + Extreme Pressure + Time
Deep in the heart of the earth, diamonds are formed in carbon-rich magma (molten rock), a liquid found in the earth’s crust which crystallizes within a rock known as kimberlite.

Kimberlite is a relatively soft rock with the ability to rise to the surface more quickly than other rocks in the same environment. It rises from a depth of 150-200 km. beneath the earth’s surface through a volcanic pipe (diatreme) or crater-like formation.

Diamonds can remain within the rock mantle for a very long time after they are formed, until they rise to the surface in magma eruptions and until the kimberlite surrounding them erodes, causing the diamonds to reach rivers, where they form deposits in the sediment.
10% of kimberlite rock in the world contains diamonds, but less than 1% will contain commercial quality diamonds with any financial value.

From the moment such a rock is discovered, many years of small, medium and large scale sampling tests are conducted on the diamond content before permits are granted and a plant is established to sift the diamonds from the surrounding orapa. It is only after all these procedures are completed that the actual mining process begins.

THE 4CS

When purchasing certified diamonds it is important to understand the diamond grading criteria used by the laboratories performing the certification.
Diamond grading covers numerous aspects of each individual diamond’s qualities, but there are four grades which are critical to understand:

Cut, Clarity, Color, and Carat weight. There are additional ratings and measurements noted on a diamond certificate,
but they generally fall under the diamond’s grade in one of the Four C’s.

DIAMOND SHAPES


The classic diamond is, to most people, a round gem of sparkling white brilliance with a kaleidoscope of dazzling facets to entice the eye.
Yes and no. Diamonds are natural crystals of varying size and shape formed in the earth over millions of years.
The traditional round brilliant diamond, though the most popular diamond shape of all, is hardly the whole story.
By the diamond cutter’s art these crystals are carved into gems of spectacular and whimsical beauty.
A cutter’s skill will produce a diamond of the greatest size with the fewest flaws and the most brilliance.
In Caprice stores you could learn about the diamond’s different shapes and cuts and consult experts in choosing your diamond’s setting.

Round Brilliant Diamonds

The Round Brilliant Cut Diamond is the most popular diamond shape set in engagement rings & solitaire jewelry.
The standard round brilliant consists of 58 facets. Modifications of the round brilliant include fancy shapes as the marquis & pear shape. This diamond shape has

set the standard for all other diamond shapes, and accounts for more than 75% of diamonds sold today.  This shape is calibrated through a precise formula to achieve the maximum in fire and brilliance. Round Brilliant Cut diamonds are the most brilliant of all the diamond shapes
Oval Diamonds
The Oval Cut Diamond has a brilliant cutting style very similar to a round diamond except that it is elliptical in shape. The Oval cut diamond was invented by Lazare Kaplan in the early 1960s.
Oval brilliant cut diamonds usually have 56 or 57 facets. Over the recent years oval cut diamonds have
become extremely popular as center diamonds for engagement rings. Its elongated shape gives a flattering illusion of length to the hand and it is especially popular among women with small hands or short finger.
Marquise Diamonds

This cut thanks its name to the Marquise of Pompadour:
a legend relates that Louis the 14th has had a stone polished according to the shape of the mouth of the Marquise of Pompadour.
Marquise Cut Diamonds maximize carat weight, creating a diamond that is visually much larger.

The Marquise is a fancy shaped brilliant cut diamond and if set in a ring with the length of the diamond along the finger it can help make the fingers look long and slender.
Pear Shaped Diamonds

A hybrid cut, combining the best of the oval and the marquise, it is shaped most like a sparkling teardrop.
It is popular for people who like the look of a round diamond but would like the style of a fancy shape diamond.

It also belongs to that category of diamond whose design most complements a hand with small or average-length fingers. With Pear shape diamonds, the length to width ratio is a matter of individual taste because of the wide variety of jewelry designs.  It is particularly beautiful for pendants or earrings.
Heart Shaped Diamonds

Heart Shape Diamonds are the ultimate symbol of love & a perfect diamond for Valentine’s Day. Heart shaped diamonds are almost round in appearance and they provide a beautiful brilliance.
Most heart-shaped brilliants are purchased as single diamonds for solitaire necklaces or engagement rings.

When choosing heart shape diamonds consider the color grade, lower color grades may cause the color to be slightly more noticeable in the corner areas of the Heart shape diamond.
Emerald Cut Diamond

The emerald cut is a step-cut diamond; that is, it has rows of facets that resemble a staircase and usually are four-sided or elongated. The beveled corners on an Emerald Cut Diamond help protect the stone making it easier to set and creating a unique brilliance. Emerald Cut Diamonds have a unique brilliance and classic elegance.

Emerald cut diamonds can vary greatly in how rectangular their appearance is and since inclusions and inferior color are more pronounced in this particular cut, take pains to select a stone of superior clarity and color.
Princess Cut Diamond

This is a square or rectangular cut with numerous sparkling facets. Princess Cut Diamonds generally have 76 facets, giving it more brilliance and fire. It is a relatively new cut and often finds its way into solitaire engagement rings.

Flattering to a hand with long fingers, it is often embellished with triangular stones at its sides. Because of its design, this cut requires more weight to be directed toward the diamond’s depth in order to maximize brilliance.
Trilliant Diamonds
This is a spectacular wedge of brittle fire. First developed in Amsterdam, the exact design can vary depending on a particular diamond’s natural characteristics and the cutter’s personal preferences.
It may be a traditional triangular shape with pointed corners or a more rounded triangular shape with 25 facets on the crown, 19 facets on the pavilion, and a polished girdle. It is definitely for the adventurous.
Radiant Cut Diamonds

This Square or rectangular cut combines the elegance of the emerald shape diamond with the brilliance of the round, and its 70 facets maximize the effect of its color refraction.

Because of its design, this cut requires more weight to be directed toward the diamond’s depth in order to maximize brilliance. Depth percentages of 70% to 78% are not uncommon.
Cushion Cut Diamond

An antique style of cut that looks like a cross between an Old Mine Cut (a deep cut with large facets that was common in the late 19th and the early 20th centuries) and a modern oval cut.
The shape of things to come in diamonds has already produced other fanciful and innovative styles such as the flower, cloverleaf, triangle and kite. Nor does it stop there.

Some cuts are variations on standard shapes, others spin off the natural crystal formation of the stone, and still others take the idea of shape to revolutionary new heights. Individuality and taste determine the fashion, and the magic of the gem cutter transforms each stone into a unique work of art.