GIA Diamond Clarity – How to Read and Understand Each Grade
Given that diamonds are formed under extreme heat and difficulty, they inevitably contain naturally occurring flaws. Depending on the severity, such flaws (called “inclusions” when inside the diamond and “blemishes” when on the surface) can impact the overall appearance of a gem. If the flaws are severe enough, they can disrupt the trail of light through the diamond hk, thereby reducing its transparency and even brilliance.
The position of an inclusion affects how easily it can also be seen. Diamond cutters will make every effort to cut some stone so that inclusions are not visible through the top of the executed diamond.
The GIA developed a clarity scale as a technique of systematically evaluating the number, size, reflectivity, color, together with position of these flaws. This scale has now been close universally adopted as a means of communicating clarity. When a wedding is graded by the GIA, a certificate is distributed reporting the findings in writing. This GIA certificate extends from buyer to seller with the diamond.
In addition to giving you the clarity grade, the GIA certificate will often moreover show a diamond plot. This plot is a the representation of the position and type of inclusions found. The main plot does not indicate how visible or severe the main inclusion is; that is what the clarity grade is for. With all the diamond plot and clarity grade together, the customer will be able to gain a firm understanding of the nature of any imperfections even without the big diamond being present.
If a diamond has been treated (laser drilling, fracture filling, etc), the clarity may be by artificial means enhanced. In fact , approximately one in three diamonds on the market today is actually artificially enhanced in some way. If detected, GIA will not dilemma a certificate to diamonds treated to improve clarity. Virtually any treatment or “enhancement” made to a diamond lowers her value. For this reason, it is important that customers insist on a certified engagement unless they are very confident in their own ability to determine such issues.
While most labs follow the GIA taxonomy just for clarity, others (such as AGS) do not. It is important to bear in mind that while other labs may use the GIA terminology, some might apply them differently. For this reason, caution should be exercised when you compare two diamonds which have been rated by different laboratories.
Sticking with is a breakdown of the GIA clarity grades and their policy riders. Further comments are included to supplement the official specific description and increase understanding of what each grade means. (View a GIA Diamond Clarity Chart for reference).
Ok (FL) – No inclusions or blemishes are accessible when viewed under 10x magnification.
Flawless diamonds can be really rare. Less than one in five thousand jewelry quality diamonds would be rated FL by GIA. For this reason, flawless grade diamond jewelry carry a substantial price premium.
Internally Flawless (IF) instant No inclusions, only blemishes are visible when visited under 10x magnification.
Internally flawless diamonds appear entirely identical to flawless diamonds when viewed without a magnifying glass. Even with magnification, only a skilled grader can perceive IN CASES WHERE level flaws. Less than 3% of diamonds sold meant for jewelry are rated IF.
Very, Very Slightly Enclosed (VVS1 and VVS2) – Inclusions are difficult to find out under 10x magnification.
Diamonds graded VVS1 typically have blemishes which can only be seen when viewing the diamond from the end, which is normally hidden once a diamond is set in money or platinum. Diamonds graded VVS2 have inclusions that can be visible when viewed from above; however , the inclusion is definitely small and cannot be seen by the unaided eye. VVS precious gems appear identical to flawless diamonds until viewed in magnification by a skilled grader. Approximately 10% of all diamond rings sold for jewelry are VVS grade.
Very To some degree Included (VS1 and VS2) – Minor Inclusions happen to be noticeable under 10x magnification.
VS inclusions are not traditionally visible to the unaided eye. Only about 1 in 70 untrained observers could detect VS2 grade inclusions when using the unaided eye. Needless to say, under casual observation, VS precious stones appear flawless.
Slightly Included (SI1 and SI2) tutorial Inclusions are clearly visible under 10x magnification.
SI1 is the lowest clarity grade with inclusions that are frequently invisible to the unaided eye. SI1 diamonds are a well known choice for their combination of price and perceived flawlessness. SI2 inclusions are often visible to the unaided eye, although basically with close inspection. With the introduction of visible skin problems (though very slight) comes a substantial reduction in price. For diamonds over 1 carat (where clarity is more very important than in smaller diamonds), SI2 diamonds are often twice immediately VS1 (all other factors being equal).
Included (I1, I2, and I3) – Inclusions are obvious under 10x magnification and may affect transparency and brilliance.
I1 jewels have flaws that are usually visible to the unaided eyeball. I1 diamonds are a good choice for customers on a budget who are typically concerned about size. I2 and I3 diamonds have problem areas that are not only visible, but are potentially severe enough so that you can affect the diamond’s durability.