header-image4

The 4Cs of diamonds

 Diamonds are in a class of their own, and if you have decided to treat yourself or someone you care for to this wonder of nature, nothing will do as a substitute. A part of each diamond’s appeal is its true uniqueness, yet each stone can also be graded on the quality scale. The diamond grading system consists of four parts, commonly referred to as “4Cs”. If you understand these, you will feel confident about your selection and purchase.

 

Cut

The cut grade describes how much light an individual stone reflects back to the viewer, which in essence means how bright the stone is. To a large extent this depends on how well the cutter has handled the unique aspects of the rough stone when cutting and polishing it.

With all 4 Cs contributing to the quality of the stone, it is, however, the cut of the stone that has the capacity to bring to light the inner beauty of the rough. The cut grade corresponds to the level of the skill used in fashioning the diamond. To ensure that the diamond emits the most light, the cutter strives to accentuate the stone’s unique qualities by way of careful, exact cutting and polishing. A stone with an “Ideal Cut” grade will be releasing light at every angle, arresting the viewer’s attention with its extraordinary brilliance. Should you want an exceptionally shiny gemstone, we would suggest to look for a diamond with a cut grade no lower than “very good”.

One of the most obvious features by which a diamond is distinguished is its shape. For a long time now the round brilliant cut with the corresponding round shape of the stone has been the preferred choice with most people. However, these days diamonds are available in quite a few different shapes, so your own selection can be a reflection of your personal, more nuanced sentiments.

Color

The color grade of the diamond indicates how much color there is to the stone, with “no color” being the most highly valued grade.

Each diamond is assigned a color grade in accordance with the grading system employed by the Gemological Institute of America (GIA), a non-profit research institute. Ranging from D to Z, D is the highest and most prized color grade which indicates that the diamond is devoid of color, with each subsequent letter representing a deeper shade.image00

Clarity

The clarity grade reflects the amount of imperfection in the stone which can come in various forms, such as blemishes, scratches, nicks, etc.

The clarity grade is designed to indicate how many or how few natural imperfections the diamond contains. Inclusions, the standard industry term used to refer to all kinds of flaws occurring in the stone, can affect the diamond’s appearance and its brilliance to varying degrees. Therefore, diamonds with fewer, less visible marks fetch higher price.
In general, if you are leaning towards purchasing a rectangular or square-shaped diamond, it is advisable to look for a higher clarity grade, such as VS1 or VS2, as opposed to round and oval shapes, with which you will be safe to go slightly lower down the grading scale.

image01

Carat Weight

This is the measure used for describing the weight of the stone.

Carat is the unit measure used in expressing the weight of the gemstone. One gram contains five carats, while one carat can be divided further into one hundred points. While in principle a greater weight implies a greater size of the stone, depending on the cut a stone can have a smaller weight yet wider dimensions than some other diamond. This also means that two stones can have perfectly identical weights, yet be different in their appearance.

In addition to all the other aspects factoring in the price of the diamond, you might do well to remember that diamonds are grouped by their weight (ex. 0.90-0.99, 1.40-1.49, 1.90-1.99). A stone may be just shy of reaching the next weight group by a point or two, yet look the part and come at a substantially lower cost.

While diamonds in the weight range between 0.75 and 1.19 seem to be most popular, this statistic might not include you. In the end, your selection will be determined by your own preference and your budget. To get an idea please look at the diagram below.

image02

 

 

 

Useful Information:

In designing the brilliant cut, facets are angled to maximize Brilliance and Fire of the diamond. The angle between pavilion (bottom) facets and the girdle (middle) is most important, because it controls the production of Brilliance by reflecting rays of light from back facets. This angle, therefore, must be correct to produce maximum internal reflection. For diamond, the pavillion angle is close to 41 degrees for this to be achieved.

Brilliance (life) – is the degree of brightness resulting from reflection of light by gemstone when viewed through the crown facets. It is made up of light reflected from pavilion facets and from the surface of the crown facets.

Fire (rainbow colors effect) – is the breaking up of white light into its spectral colours when white light passes through the inclined facets of a cut material. Diamond is known for the great amount of fire. Crown facets are responsible for producing most amount of the effect.

 

If the diamond is too deep or too shallow, then light leaks out of the back facets of the diamond, reducing the brilliance.

image01

In diamonds with shallow pavilion an effect called a “fish eye” may be seen. This is where a reflection of the girdle can be seen through the table of the stone.

If the pavillion is too deep this may give the effect of dark circle, either taking up a large proportion of the table or the entire table. This is sometimes called “nail head”

The effect of changing the crown angle, or height, and thus the table size, will alter the balance of brilliance and fire seen in the stone.

In designing the brilliant cut, facets are angled to maximize Brilliance and Fire of the diamond. The angle between pavilion (bottom) facets and the girdle (middle) is most important, because it controls the production of of Brilliance by reflecting rays of light from back facets. This angle, therefore, must be correct to produce maximum internal reflection. For diamond, the pavillion angle is close to 41 degrees for this to be achieved.

Brilliance (life) – is the degree of brightness resulting from reflection of light by gemstone when viewed through the crown facets. It is made up of light reflected from pavilion facets and from the surface of the crown facets.

Fire (rainbow colors effect) – is the breaking up of white light into its spectral colours when white light passes through the inclined facets of a cut material. Diamond is known for the great amount of fire. Crown facets are responsible for producing most amount of the effect.

Diamonds are in a class of their own, and if you have decided to treat yourself or someone you care for to this wonder of nature, nothing will do as a substitute. A part of each diamond’s appeal is its true uniqueness, yet each stone can also be graded on the quality scale. The diamond grading system consists of four parts, commonly referred to as “4Cs”. If you understand these, you will feel confident about your selection and purchase.

In designing the brilliant cut, facets are angled to maximize Brilliance and Fire of the diamond. The angle between pavilion (bottom) facets and the girdle (middle) is most important, because it controls the production of of Brilliance by reflecting rays of light from back facets. This angle, therefore, must be correct to produce maximum internal reflection. For diamond, the pavillion angle is close to 41 degrees for this to be achieved.

Brilliance (life) – is the degree of brightness resulting from reflection of light by gemstone when viewed through the crown facets. It is made up of light reflected from pavilion facets and from the surface of the crown facets.

Fire (rainbow colors effect) – is the breaking up of white light into its spectral colours when white light passes through the inclined facets of a cut material. Diamond is known for the great amount of fire. Crown facets are responsible for producing most amount of the effect.

 

 

FREE SHIPPING

PUREDIAMOND.CA offers complimentary shipping on all jewelry shipped in the CANADA or the U.S. via FedEx® Priority Overnight.

You'll take comfort in knowing precisely what day your order will arrive. If you wish, you can also follow every step it takes along the way with detailed order tracking.

Learn More

30 Day Return Policy

The purchase of a diamond can be one of the most difficult decisions you'll ever have to make. That's why purediamond.ca gives you 30 days to return your diamond for a full refund or exchange without charging a restocking fee. No questions asked! If for any reason you want to return your diamond, you've got thirty full days to decide. This 30-day return policy is for the center diamond only, not side stones, three-stone rings or mountings. The center diamond must be in excellent condition, free from breakage and chipping, and be accompanied by certification documents.

If certification documents are lost or you are not able to provide them, $200 will be deducted from your return amount to cover recertification of the diamond. *In order to give our customers the best pricing, we do not allow comparison purchasing. Comparison purchasing is the act of ordering two or more of the same, or similar item, and then only keeping one of them. If you are unsure, or have detailed questions about a particular item, please call one of our customer service representatives for expert help. *Our 30-day return policy applies to purchases up to $29,000

Schedule an appointment





Please feel free to call 1 (855) 736-2591 or 604-563-9875.

A Pure Diamond specialist will be happy to answer any questions you may have.

Thank you!

We will get in touch with you shortly.

Share it

Learn more

Thank you!