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Diamond Certification and The Four Cs - Most Important Characteristics While Buying a Diamond

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The Four Cs»

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No two diamonds are exactly like. Understanding how to distinguish one diamond from another is made possible with the Four Cs: carat, clarity, color and cut.

When you grasp the Four Cs you will take your first big step to becoming an educated diamond consumer; you will not figure out the meaning of life but you will know why one diamond is priced higher than another. But remember, a diamond is not a steak: it's defined by more than its grade.

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Cut1.1.

• A diamond's cut grade is one of the most important factors in determining its beauty. The way a stone is cut unlocks its natural brilliance.

• A skilled diamond cutter adds "facets" to a stone, polishing it with utmost precision and with the most ideal achievable proportions and shape in mind.

• A diamond's shape, ranging from a round brilliant to one of numerous "fancy" shapes, is different from its cut, which rests on criteria such as proportions, symmetry and polish.

• The cut grade measures how well the diamond reflects light. If a diamond is cut to ideal proportions, it will reflect light from the top of the stone, or table. If the cut is too shallow light passes through the bottom of the stone. If the cut is too deep, light leaks from the side.

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Color2.2.

• This criterion will challenge your logic skills, because color actually refers to a lack thereof, grading the whiteness of a diamond.

• Color is measured on a scale from D (highest) to Z (lowest); fancy color diamonds are graded on a different scale (using colors instead of letters of the alphabet, and thus defying your logic skills a little less).

• The less color a diamond has, the higher its color grade. Color in a "white" diamond appears as a shade of yellow. The lower a diamond's color grade, the more yellowish it appears.

Source: http://www.beautjewellery.com/4cs/

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Clarity3.3.

• Life isn't perfect, and while diamonds may express a perfect love, they can be born with natural blemishes. Clarity is a measure of the small natural imperfections, or inclusions, that appear in almost every diamond.

• Because each stone's inclusions are unique, they represent its "fingerprint." A clarity grade is determined by their number, size, position, nature and visibility. The smaller the inclusion, the higher the clarity grade and the more valuable the diamond is.

• Generally, because of their microscopic nature, inclusions are usually not visible to the naked eye and do not materially affect the way a diamond looks.

Source: http://www.champagnediamondcenter.com/color_palette.asp

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Carat Weight4.4.

• Carat is measure of a diamond's weight. No advanced math required here: just like a dollar is made up of 100 cents, a carat consists of 100 points, so a diamond weighing 75 points is equal to 0.75 carats.

• The more a diamond weighs, the rarer it tends to be because larger gem-quality rough diamonds occur in nature less frequently than smaller ones, and as much as two-thirds of total carat weight may be lost when a rough diamond is polished.

• Also important when considering carat weight is the diameter of the diamond when viewed face, or table, up.

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Diamond CertificationWhether you're considering purchasing a loose colorless diamond or a gorgeous pink, blue or yellow, one of the first things you need to ensure is that your diamond is certified.

Buying any diamond can be complicated, especially for first-timers. You're confronted with an avalanche of scientific-sounding information that's hard to figure out unless you're an expert in the trade. That's where diamond certificates come into the picture.

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A certificate from an independent grading laboratory is like a diamond’s fingerprint. Certificates are issued by reputable diamond grading laboratories such as the Gemological Institute of America (GIA) and the American Gemological Society (AGS).

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» They are critical to offering the buyer an independent evaluation of the diamond using tools and knowledge not available to the average consumer.

Labs such as GIA and others employ highly-trained gemologists to inspect each diamond they grade, using loupes, microscopes and micrometers to analyze every aspect of the loose diamond, including the 4 Cs (cut, color, clarity and carat weight), polish, symmetry, dimensions and many other characteristics, all of which contribute to determining your diamond's value.

Grading labs provide specialized reports for fancy color diamonds, such as pink diamonds, blue diamonds, yellow diamonds, and others.

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All certificates, like all diamonds, are not created equal. GIA is the most reputable independent diamond grading laboratory in the industry, setting the standard for assessing diamond quality having established the very first globally-accepted diamond grading system.

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Having a GIA certificate ensures that you can present your diamond to anyone in the industry and they will instantly recognize its quality and value. Other reputable independent grading labs include AGS, UGL, HRD and EGL.

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When purchasing loose colorless diamonds, or fancy colors like blue diamonds, pink diamonds, yellow diamonds, and others, it's to your advantage to make sure these stones are certified.

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» This is the only way that you can ensure that you're getting an unbiased assessment of the diamond, providing you a guarantee of its value and authenticity and enabling you to easily resell it down the road.

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