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Jewelry Information - The 4 C's of Diamonds


Diamond is one of the two best known forms of carbon, whose hardness and high dispersion of light make it useful for industrial applications and fabulous jewelry.  Diamonds are specifically renowned as a mineral with superlative physical qualities — they make excellent abrasives because they can be scratched only by other diamonds and some other extremely hard items. As a result of this hardness and durability, they polish very well and can retain their luster extremely well...making them a prized gemstone and one of the most popular for jewelry. It is estimated that there are 130 million diamond carats (26,000 kg) mined annually. As for the fake or synthesized carats, that amount almost quadruples to approximately 100,000 kg per year. Diamonds are rated based on clarity, colour, cut and carat size. 

The 4 C's of diamonds: The 4 C's for diamond rating are: Clarity, Color, Cut, and Carat Weight.

2-1/4 CT. T.W. Multi-Stone Diamond Ring in 14K Gold


14 kt Yellow and White Gold Emerald and Diamond Ring

Clarity is a measure of how clear or pure a diamond is. The number, size, nature and location of both the internal and external imperfections is used to determine clarity. The GIA - Gemological Institute of America has established a scale for rating clarity.

Symbol Meaning Definition
F Flawless Free from all inclusions or blemishes.
IF Internally Flawless No inclusions visible at 10x magnification.
VVS1 Very Very Slightly Included #1 Inclusions that are extremely difficult to locate at 10x.
VVS2 Very Very Slightly Included #2 Inclusions that are very difficult to locate at 10x.
VS1 Very Slightly Included #1 Minor inclusions that are difficult to locate at 10x.
VS2 Very Slightly Included #2 Minor inclusions that are somewhat difficult to locate at 10x.
SI1 Slightly Included #1 Noticeable inclusions that are easy to locate at 10x.
Sl2 Slightly Included #2 Noticeable inclusion that are very easy to locate at 10x.
I1 Included #1 Obvious inclusions. Somewhat easy to locate with the unaided eye.
I2 Included #2 Obvious inclusions. Easy to locate with the unaided eye.
I3 Included #3 Obvious inclusions. Very easy to locate with the unaided eye.

Please note that this scale has evolved over time and will continue to do so as improvements in verification of diamond clarity are made.

Also of note: Be vigilant in purchasing clarity corrected diamonds as the methods used are not necessarily permanent.


Color is a measure of the amount of colour in the diamond. Various colours can be found - from grey brown yellowish to fully colourless. If unique colours such as blue, green, red and pink are evident, the diamond is most likely more valuable due to its rarity. The GIA has a rating system for diamond color as described in the following table:

D, E, F, G, H, I Colorless
J, K, L Near Colorless
M Faint Yellow
N, O, P, Q, R Very Light Yellow
S, T, U, V, W, X, Y, Z Light Yellow

Cut refers to the proportions, finish, symmetry, and polish of the diamond. These factors determine the fire and brilliance of a diamond. The more accurate the cut, the better quality the diamond will have and hence, it will sell for a premium price as compared to poorly cut diamonds which should sell for a discounted rate. There is now a computerized system, the Dia-Mension system, which can easily measure the exact proportions of any diamond. This allows for a quick determination of the cut quality of the diamond. This is the only measure of diamonds which is in the hands of the cutter craftsperson or artist. He or she will be responsible for the cut quality whereas all of the other measures are purely natural.

Carat measures the weight of a diamond. Carats are subdivided into a 100 points system ( 0.01 carat = l point ). One carat is equal to 0.20 grams. The larger the carat weight of a diamond, the greater its value/carat. For example, a 3-carat diamond is worth more than 3 1-carat diamonds.

Now that you know all about diamonds, Find your perfect Diamond  

Artificial or synthetic materials used as gems include:

Triple Heart Cubic Zirconia Ring

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Cubic Zirconia Diamonds