The most important of the 4Cs is Cut because it has the greatest influence on a diamond’s sparkle.

Learn More About Cut



The term Carat actually refers to the diamond’s total weight and not its size.

Learn More About Carat



The second most important of the 4Cs is Colour, which refers to a diamond’s lack of colour. The less colour, the higher the grade.

Learn More About Colour



Each Fancy Shape has different attributes that affect price and quality grade.

Learn More About Shape




Often the least important of the 4Cs because the tiny imperfections are often microscopic.                                                       .

Learn More About Clarity



Unbiased diamond grading reports are offered with every Blue Nile diamond.

Learn More About Certification


Diamond Cut

Buying Tips

  • Cut is the most important of the 4Cs because it has the greatest influence on a diamond’s sparkle.
  • Even if a diamond has a perfect clarity and colour grade, if it has a poor cut, it may appear dull.
  • When a diamond is cut with the proper proportions, light is returned out of the top of the diamond (which gemmologists refer to as the table). If it is cut too shallow, light leaks out of the bottom; too deep and it escapes out of the side.
  • To maximise your budget, choose the highest diamond cut grade your budget allows. We suggest a cut grade of Very Good or better.

Diamond Cut Grade Chart

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Diamond Colour

Buying Tips

  • The second most important of the 4Cs is colour because it’s what the eye notices next after sparkle.
  • A diamond’s colour actually refers to its lack of colour. The less colour, the higher the colour grade.
  • To avoid a pale yellow colour, choose a diamond grade H or higher.
  • Azadi Jewellery offers only Colourless (grades D-F) to Near-Colourless (grades G-J) diamonds to assure that any natural colour present is typically undetectable to the naked eye.

Diamond Clarity

Buying Tips

  • Most diamonds have tiny imperfections called inclusions.
  • The fewer and less visible the inclusions, the higher the clarity grade.
  • Diamond clarity is often the least important of the 4Cs because most inclusions are microscopic; they don’t affect the diamond’s beauty in a visible way.
  • To maximise your budget, consider an “Eye-Clean” diamond, graded VS1 or higher, in which inclusions are invisible to the naked eye.

Diamond Carat Weight

Buying Tips

  • Carat is the most misunderstood of the 4Cs. It actually refers to a diamond’s weight, not its size.
  • Consider cut and carat together; a larger carat diamond with a poor cut grade can appear smaller than a smaller diamond with a higher cut grade.
  • To maximise your budget, “Buy Shy,” which means selecting a carat weight slightly below the whole and half carat marks. For example, instead of a 2.0-carat diamond, consider buying a 1.9-carat weight. This will save a considerable amount of money and the slight size difference will never be noticed.

Diamond Shape

At Azadi Jewellery, we apply the same high quality standards to all of our diamond shapes. We have an exceptional collection of traditional round diamonds and we also offer the finest non-round, or “fancy-shaped”, diamonds available. All of our certified diamonds are graded by the GIA or AGSL to have FL-SI2 clarity, D-J colour, and Ideal, Very Good, or Good cut. Azadi diamonds are specifically cut to achieve unmatched sparkle and light performance that commands the attention of every eye in the room.

Choose Your Diamond Shape

Since all diamond shapes are very different, unique characteristics determine quality for each shape. If you have questions, feel free to contact us so that we can help you find the diamond that’s perfect for you.

How Diamond Shape Affects Price?

The shape is an important consideration when buying a diamond as it directly influences price. Round diamonds, the most popular diamond shape, tend to be priced higher than other shapes (referred to as fancy shapes) because of market demand, increased manufacturing costs, and their incredible brilliance.

Fancy shaped diamonds include all diamonds other than round. Azadi Jewellery offers nine different fancy shapes, including princess, emerald, Asscher, cushion, marquise, radiant, oval, pear, and heart.

Diamond Certification

Before purchasing a diamond, you should expect to review a copy of its certificate as proof that it has undergone an unbiased, professional examination.

What is a Certificate?

A diamond certificate, also called a diamond grading report, diamond dossier®, or diamond quality document, is a report created by a team of gemmologists. The diamond is evaluated, measured, and scrutinized using trained eyes, a jeweler’s loupe, a microscope, and other industry tools. A completed certificate includes an analysis of the diamond’s dimensions, clarity, colour, polish, symmetry, and other characteristics. Many round diamonds will also include a cut grade on the report.

Azadi Jewellery’s Diamonds are Certified

Every loose diamond sold by Azadi Jewellery has been analyzed and graded by either the Gemmological Institute of America (GIA) or the American Gem Society Laboratories (AGSL). These two laboratories are among the most respected laboratories in the diamond industry, and are known for their consistency and unbiased diamond grading systems. Diamonds that are accompanied by these grading reports are the most highly valued in the industry.

In addition to being graded by either the GIA or the AGSL, all Azadi Jewellery diamonds are graded by GemEx – the leader in light measurement – for its brilliance, fire, and sparkle. This second independent analysis guarantees the Azadi Jewellery diamond’s uncommon brilliance.

Natural Coloured Diamonds

Only one in every 10,000 diamonds possesses natural colour and is referred to as a coloured diamond. For this reason, coloured diamonds are purchased almost exclusively for the intensity and distribution of the diamond’s colour. Criteria considered when purchasing a white or colourless diamond, such as cut proportions and clarity, are less important when purchasing a coloured diamond. The information below will help you understand coloured diamonds to determine the diamond that’s right for you.


Colour intensity, the deepness or richness of colour, is the most important consideration when purchasing a coloured diamond. The more intense the colour, the rarer and more valuable the diamond will be. All of our Blue Nile coloured diamonds possess natural colour and are never exposed to artificial coloring techniques such as dyeing or irradiation.


After colour grade, carat weight has the most impact on price for coloured diamonds. When diamonds are mined, large gems are discovered much less frequently than small ones. This makes large diamonds much more valuable. For this reason, diamond prices for coloured diamonds rise exponentially with carat weight. Learn more about carat weight in our Diamond Education section.


Due to the nature of coloured diamonds, clarity is less important than it is in their colourless counterparts. This is true because inclusions tend to be masked by the diamond’s colour.


Coloured diamonds are primarily cut to emphasise their colour. This contrasts with colourless diamonds that are cut to maximise sparkle or brilliance, which in some instances can detract from the natural colour of a coloured diamond. While coloured diamonds still exhibit brilliance, colour is the most important characteristic considered when they are being cut.


While cut describes a diamond’s light performance, dimensions and finish; shape refers to the overall outline of the diamond when viewed from the top (e.g. round, princess or marquise). It’s important to note that many coloured diamonds are cut into non-traditional shapes to enhance their natural colour. Due to the rarity of coloured diamonds, a specific shape in a specific colour may not be available at any given time. If you’re seeking specific criteria in a coloured diamond, please call our Diamond and Jewellery Consultants at 888-565-7609 for more information.


All Azadi Jewellery’s coloured diamonds are independently analyzed and graded by the Gemmological Institute of America (GIA), which is among the most respected laboratories in the diamond industry. Each diamond is accompanied by a coloured diamond identification and origin report. This authoritative report lists the diamond’s specifications including its colour grade, and ensures its natural origin.

Coloured Diamonds

When choosing a setting for a coloured diamond, it is best to choose a setting material that will enhance the natural colour of your diamond. For example, yellow diamonds are often set in yellow gold, while pink diamonds look best when set in rose gold. If you have questions about the best setting for your coloured diamond, please call our Diamond and Jewellery Consultants at +1(844)92-AZADI for more information.