The Four C’s Of Quality Diamonds

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Diamond Cut

The most important characteristic of a diamond is the cut.

The cut of a diamond is determined by the angles and proportions created when a diamond cutter transforms a rough diamond into its final polished state. When purchasing a diamond, we recommend choosing the highest available cut grade within your intended budget. The cut of your diamond has the greatest impact on the appearance of the diamond.

Cut Grades

Ideal

A rare cut, all light entering the diamond is reflected through the top. This produces the highest level of brilliance.

Excellent

An exquisite cut, nearly all light entering the diamond is reflected through the top. This produces a level of exceptional brilliance.

Very Good

While the cut is not perfect, most light entering the diamond is still reflected through the top. This produces a level of very high brilliance.

Good

Diamonds of this grade are not as brilliant as those of the first three, but are still very bright.

Fair

Diamonds of this grade have been imperfectly cut so they lose light and are noticeably duller. Precision Diamond Setters does not carry diamonds of this cut grade.

Poor

Diamonds of this grade have been cut too shallow or too deep, thus losing a lot of light. Precision Diamond Setters does not carry diamonds of this cut grade.

 

The cut determines how light interacts with the diamond. In essence the cut is responsible for a diamond’s sparkle or brilliance. A well cut diamond will disperse light evenly through the crown (top) of the diamond. Reflecting light internally from one facet to another. A shallow and wide cut diamond will lose light through the bottom. A diamond that is cut too deep and narrow, will lose light through its sides. Precision Diamond Setters only use diamonds of the highest quality cut grades so you can always be assured of the brilliance of your diamond.

Should you have any further questions, simply fill in our contact form and we will be in touch with you shortly.

 

Diamond Clarity Explained

 The clarity of a diamond is  the presence or absence of natural impurities, also known as inclusions, within the diamond.

The most sought after diamonds have no inclusions visible to the naked eye. Most inclusions are so small that they have no impact on the stone’s beauty or brilliance. The universal diamond clarity grading system is that of the world-renowned Gemological Institute of America (GIA), A diamond’s clarity grading is determined by the size, position and colour of inclusions. Generally speaking , the less inclusion, the higher the clarity grade.

At Precision Diamond Setters, we only work with diamonds graded FL – SI (Flawless to Slightly Included), which are the highest clarity grades available.

 

Diamond Clarity Grades

FL

Flawless: No inclusions internally or externally. Diamonds of this grade are extremely rare.

IF

Internally Flawless: No inclusions internally. Diamonds of this grade are also exceptionally rare.

VVS1, VVS2

Very Very Slightly Included: Slight imperfections invisible to the naked eye and very difficult to see even after 10x magnification. Diamonds of this grade are of extremely high quality.

VS1, VS2

Very Slightly Included: Some imperfections that are not visible to the naked eye. Diamonds of this grade are of excellent quality and are less expensive than those of the VVS1 or VVS2 grades.

SI1, SI2

Slightly Included: Internal and external inclusions are visible under 10x magnification. Diamonds of this grade are of very good value.

I1, I2, I3

Included: Imperfections which are visible and quite evident to the naked eye. Precision Diamond Setters does not carry diamonds of this clarity grade.

 

If you would like to know more, fill in our contact form and we will get back to you as soon as possible..

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Diamond Colour Grades

The colour of a diamond is often viewed as the second most important characteristic to consider when purchasing a diamond. This is because it is one of the most obvious features visible to the naked eye.

A diamond’s colour grade is determined buy how much or how little colour is present. The less colour a diamond has, the higher its colour grade and the greater its value.

 

Colour Grades

D

Diamonds are completely colourless and extremely rare. This is the highest colour grade.

E – F

Diamonds are still colourless to the naked eye, and only a trained gemmologist would be able to detect colour.

G – H

Diamonds are near-colourless, and colour is difficult to detect with the naked eye. While not completely colourless, diamonds in this grade are of excellent value.

I – J

Diamonds are near-colourless, and colour can be detected slightly with the naked eye. While not completely colourless, diamonds in this grade are of very good value.

K – M

Diamonds have noticeable colour that can be detected with the naked eye. Precision Diamond Setters does not carry diamonds of this colour grade.

N – Z

Diamonds have strong noticeable colour that can be easily detected.  Precision Diamond Setters does not carry diamonds of this colour grade.

 

If you have any questions contact us  and we will be in touch with you shortly.

 

Diamond Carat Weight Explained

A diamond’s carat weight is more than a measurement of mass.

Whilst a diamond’s carat weight indicated the weight of a diamond, it is not always indicative of it’s size, Two other factors need to be considered – the dimensions of the top (crown) and the quality of it’s cut. Firstly , the dimensions of the top of the diamond are influential in the perceived size of the diamond as rings are generally viewed from the top. Secondly the cut of the diamond is the most significant characteristic so this should be a factor to consider carefully. If a diamond is cut too narrow and deep, it hides some of the carat weight in the base, making the stone appear smaller than its given weight. If a diamond is cut too wide and shallow, it will have a large top diameter for its given weight but light will leak through the bottom of the diamond, making it appear dull. A well-cut diamond will reflect the maximum amount of light back through the top of the stone, making it appear larger.

Should you have any further questions, simply fill in our contact form and we will be in touch with you shortly.

 

The chart shown here gives a rough comparison between diamond size and carat weight.

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Shapes Explained

Diamond’s can be cut into a variety of shapes to suit various tastes and occasions.

Precision Diamond Setters can craft diamonds to your desired shape, always maintaining our high quality standards.

Below are examples showing just a few of the most popular diamond shapes available.

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Fluorescence

A diamond’s tendency to emit light when exposed to UV light.

Fluorescence is a diamond characteristic that should have little bearing on choosing a diamond.  Technically fluorescence is caused by trace minerals in the diamond that cause the diamond to emit a soft glow when exposed to UV light. Industry experts disagree widely on the impact this has on the quality of the diamond. For the average observer it will have no impact on how your enjoy your diamond.

Should you have any further questions, simply fill in our contact form and we will be in touch with you shortly.

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