A diamond's clarity refers to the presence of impurities on and within the stone. When diamonds are formed naturally under extreme heat and pressure, imperfections in the crystal structure can form and tiny traces of natural elements are almost always trapped inside called inclusions. The diamond with highest quality on clarity grading is the one with absence of any imperfections which could possibly occur in the stone.

Diamond clarity is one of the four primary characteristics for evaluation of the stone, generally known as the 4 C’s. The diamond with highest quality on clarity grading is the one with absence of any imperfections which could possibly occur in the stone. A diamond which isn’t flawless by al standards is said to have inclusions which could be internal or external. Internally any natural impurity within the stone is considered as an inclusion or imperfection while a surface blotch is taken as an external flaw. Diamond’s clarity represents the number or size of inclusions in it, whether internal or external. These inclusions are very minute, quite microscopic in nature but are considered as a flaw even though their existence has no impact on the stone’s apparent beauty and enchantment. A diamond’s shape which is its form when viewed in top down index can influence its clarity. Some shapes tend to hide some inclusions while shapes with broader table diameter are more prone to flaw detection and clarity grade deterioration. The classic round cut diamonds and the trendy princess cut diamonds are the most suitable form for better clarity these shapes can hide imperfections to a certain extent. The step-cut shapes such as the emerald cut or the asscher cut forms of diamonds have broader tables and so they are much less likely to hide the flaws.


The imperfections or inclusions can occur in various forms in a diamond. The most common inclusion is an external hole in the surface of the stone. It can be anywhere on the stone and can affect its durability depending on the position itself. These wholes are generally referred to as cavities which can exist in any size. Diamond cutting is quite sensitive and leave a surface imperfection in the form of indented chip or feather on the edge. Lines or drag marks might be left during the polishing process usually breaking the surface so minutely that only magnification can identify this kind of imperfection, termed as knot. Indented natural imperfections may exist for alight portion of the stone is left without polish, a Needle shaped imperfection or Pin Point flaw is shaped similar to their name and is visible at very high magnification only. Internally some impurities might cluster together and appear as a cloud within the diamond. However, these clouds are generally translucent and so do not impact the clarity grade of a diamond. Twinning wisp is one structural imperfection in which inclusions tend to twist together, a kind of flaw found in fancy diamond shapes only.

Clarity Inclusions

It is quite general for all natural diamonds to possess an inclusion which is most probably a chemical identifier within the stone. However, experts have developed a clarity standard, a scale with different grades for various levels of clarity in diamonds. This first standardised scale was introduced midway through the twentieth century while a more refined and diversely categorised clarity grading scale was standardised in the seventies. Following is a list of clarity grades for diamonds with standard description.

FL - Flawless

The diamonds in this category are completely flawless with no internal or external inclusions of any kind. These are the rarest diamonds. It is extremely rare and is an exquisite symbol of perfection. Less than 0.1% of all gem quality diamonds are in this category.

IF - Internally Flawless

IF diamond has no inclusions and may possess very minute undetectable surface blemishes. It is extremely rare and truly gorgeous. These tiny blemishes do not affect sparkle and are known as minor details of polish such as polish lines. These imperfections can be found only by a skilled grader in 10x magnification.

VVS1 - Very Very Slightly Included 1

VVS1 diamond has very minute inclusions that are extremely small, and often undetectable by many diamond professionals, even under 10x magnification. VVS1 offers a much better value than FL or IF and still has virtually the same appeal. The most common VVS1 inclusions are pinpoint and natural.

VVS2 - Very Very Slightly Included 2

VVS2 diamond has very minute inclusions that are extremely small, but are slightly more visible under magnification than VVS1. This clarity grade is considered the best value of the higher clarities and does not compromise your diamond’s brilliance. Inclusions can rarely be found, even under 10x magnification. The most common VVS2 inclusions include cloud, pinpoint, feather and natural.

VS1 - Very Slightly Included 1

The inclusions in VS1 diamonds cannot be viewed by the naked eye and have minimal impact on diamond sparkle. VS1 diamond has very minor inclusions that can be seen only under magnification. VS is a very popular clarity range. The most common VS1 inclusions include cloud, feather, needle, crystal, indented natural.

VS2 - Very Slightly Included 2

VS2 diamond has very minor inclusions that look only slightly larger than a VS1 under magnification. A VS2 is not noticeable to the unaided eye and is extremely popular because its value propositions. VS2 diamonds tend to have a few more inclusions than VS1 and the size is slightly larger, while still microscopic. The common VS2 inclusions include crystal, feather, indented natural, cloud and twinning wisp.

SI1 - Slightly Included 1

The slightly included diamonds, considered to be fine quality, having visible imperfections under magnification range of 10x. SI1 diamond will sparkle brilliantly even with its minor inclusions that may be invisible to the unaided eye. SI1 is extremely popular because its value propositions. SI1 inclusions are larger crystals, twinning wisps, feathers, clouds and knots.

SI2 - Slightly Included 2

SI2 diamond will possess high sparkle and is comprised by clarity inclusions that may be visible without magnification, when examined closely. Most SI2 inclusions are undetectable to the unaided eye. SI clarity grades tend to offer great value. Common SI2 inclusions are larger crystals, twinning wisps, feathers, clouds and knots.

I1 - Included

I1 diamond will shine bright despite eye visible inclusions clarity inclusions. The inclusions can be visible without magnification when the diamond is closely examined, depending on size and location. I1inclusions are large crystals, feathers, clouds, knots and activities. With Clarity does not carry any diamonds in the I2 or I3 range as the clarity inclusions in these really start to distract from the sparkle and the beauty of the diamond.

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