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The diamond clarity is evaluated to classify a stone with its natural internal and external characteristics.
Many times infinitesimal stains are found on the surface of the stone and slight internal inclusions due to other minerals or gases. This is because, at the time of the formation of the Diamond, these chemical agents were trapped inside the crystal.
A diamond is considered pure if no defects are found with a 10x magnification lens.
Any minor defects in the Diamond that Gemologists define as "internal characteristics", if not visible to the naked eye, do not in any way alter the beauty and brilliance of the Diamond. In any case, they have a decisive influence on the stone's value based on the different gradations codified by GIA.
Each Diamond is undoubtedly unique, even if not perfect, precisely considering the natural environment where it was formed.
Discover the characteristic of the diamond
The Excellent cut is a perfect cut that man can perform. Obtaining an “ideal” cut from the raw mineral means that the study of the proportions and the finishing of the gem have been carried out perfectly.
A diamond classified as Very Good cut is of sublime and rare quality. Its luster comes from the gemstone put in absolute prominence, without any adverse effect.
A diamond classified as Good cut accounts for the majority of commercial diamonds. It does not alter the brilliance of the stone, having a much more affordable cost.
The color of the diamond is an essential part of the evaluation of the stone.
A series of analyses performed by professionals equipped with the correct instrumentation can determine a diamond's color.
The type of setting can interfere with the appearance of the diamond's color.
The commercial term used “Eye Clean” refers to Diamonds that may have inclusions or spots that are too small to be seen with the naked eye.
An excellent approach to starting research is to maximize your budget starting from the VVS or VS purity categories because both do not highlight visible defects.
If you buy a 1 carat or higher diamond, you must consider that some types of cut, such as the emerald or Asscher cut, favor the visibility of those minor clarity defects within the stone. On the other hand, the inclusions on the Brilliant cut are much less influential because they are less visible, thanks to the quality of its 57/58 facets.
The gradation of the clarity of a Diamond heavily affects the price. Therefore, a significant consideration to make when buying!
The Diamond does not show any internal inclusions or external blemishes when using a 10x magnification lens.
Flawless Diamonds are very rare.
A Flawless Diamond represents a miracle of nature of pure Carbon without contamination, considering that the crystal was formed in the depths of the earth.
IF-graded diamonds can only have minimal surface features that can detect under a microscope.
IF classified diamonds have no internal characteristics or inclusions.
Internal characteristics not detectable by eye examination.
VVS Diamonds can have tiny internal inclusions that are hardly detectable by the lens at 10x magnification even by an expert.
VVS Diamonds are rare, and on eye examination, they are in no way affected in their beauty.
Any surface characteristics are difficult to detect even with a 10x magnification lens by an expert.
VS1 / 2 Diamonds have slightly more visible internal characteristics than the superior category, even if the detection can only be seen by an expert with a 10x magnification lens.
VS1 / 2 Diamonds are considered by Torrini to be the most popular and the most affordable.
SI1 / 2 Diamonds have inclusions and internal or external characteristics easily detectable by the 10X magnification lens.
If the SI1 / 2 diamonds keep a good brilliance to the naked eye, they are often the ones with the best value.
SI1 / 2 Diamonds may have inclusions visible to the naked eye, especially when viewed from the side.
I1 / I2 / I3 diamonds have internal features visible to the naked eye and affect the stone's brilliance.
Torrini does not sell Category I Diamonds.
In 1953, the Gemological Institute of America established the graduation scale of the purity of diamonds. The GIA diamond grading scale is divided into 6 categories and 11 diamond clarity grades!
Size
If the characteristic is very evident, it negatively affects the degree of purity.
Number
Refers to the number of easily visible features. The fewer observable characteristics there are, the higher the degree of purity.
Position
If an internal feature of the Diamond is located under the table or near the pavilion, it can affect the refraction. Therefore it can create a more evident impact on the degree of purity of the Diamond.
Nature
The Diamond crystal may have formed naturally with inclusions. The nature of a diamond feature is related to the type of inclusion and its impact on durability.
Remember that a Flawless (FL) or Internally Flawless (IF) Diamond belongs to the highest quality ever. The consequence of being extremely rare and therefore very expensive at the time of purchase. To escape from a too high evaluation, you should consider selecting a diamond with some inclusions that are not visible such as a VVS or VS purity.
Sometimes lowering the cost does not alter the beauty, luster, and brilliance of the diamond.
Some shapes or cuts of Diamonds require a higher purity than others. For example, the emerald cut or the Asscher cut requires a higher purity precisely because you can better see the possible presence of internal characteristics through the sparse stepped facets.
For these cuts, you must choose a higher grade of diamond such as IF or VVS to ensure that the internal inclusions are not seen with the naked eye.
Fancies Diamonds are measured on a separate color scale and have a higher value than colorless diamonds.
In the certificates issued by the GIA, diagrams express the mapping of any inclusions or internal characteristics present in a Diamond. They allow understanding if the interior features can have greater or lesser visibility to the naked eye.
For example, if the inclusions are positioned outside the diamond, they will be less visible than on the center of the stone.
Discover the quality elements of Diamond Color
The Diamond Cut strongly influences the beauty of the gemstone. A perfect cut will make the brilliance of the diamond stunning
The diamond color indicates the absence or presence of other chemical elements that could give the stone a series of yellow shades.
The Carat is the unit of measurement for calculating the weight of Diamonds. It does not indicate the size of the gem.
The various diamond shapes differ from each other for the geometric nature that the cutter gives to the rough stone.
The diamond clarity is evaluated to classify a stone with its natural internal and external characteristics.
Many times infinitesimal stains are found on the surface of the stone and slight internal inclusions due to other minerals or gases. This is because, at the time of the formation of the Diamond, these chemical agents were trapped inside the crystal.
A diamond is considered pure if no defects are found with a 10x magnification lens.
Any minor defects in the Diamond that Gemologists define as "internal characteristics", if not visible to the naked eye, do not in any way alter the beauty and brilliance of the Diamond. In any case, they have a decisive influence on the stone's value based on the different gradations codified by GIA.
Each Diamond is undoubtedly unique, even if not perfect, precisely considering the natural environment where it was formed.
Here are some tips to start your knowledge of Diamonds.
Many confused and erroneous ideas about the purity of Diamonds are disclosed, including the belief that it is advisable to purchase a high purity diamond to avoid seeing imperfections with the naked eye. In truth, awell-cut diamond manages to hide every slight imperfection with its brilliance. Obviously, the fewer imperfections there will be inside the stone, the more the diamond will release its beautiful characteristics.
The commercial term used “Eye Clean” refers to Diamonds that may have inclusions or spots that are too small to be seen with the naked eye.
An excellent approach to starting research is to maximize your budget starting from the VVS or VS purity categories because both do not highlight visible defects.
If you buy a 1 carat or higher diamond, you must consider that some types of cut, such as the emerald or Asscher cut, favor the visibility of those minor clarity defects within the stone. On the other hand, the inclusions on the Brilliant cut are much less influential because they are less visible, thanks to the quality of its 57/58 facets.
The gradation of the clarity of a Diamond heavily affects the price. Therefore, a significant consideration to make when buying!
The Diamond does not show any internal inclusions or external blemishes when using a 10x magnification lens.
Flawless Diamonds are very rare.
A Flawless Diamond represents a miracle of nature of pure Carbon without contamination, considering that the crystal was formed in the depths of the earth.
IF-graded diamonds can only have minimal surface features that can detect under a microscope.
IF classified diamonds have no internal characteristics or inclusions.
Internal characteristics not detectable by eye examination.
VVS Diamonds can have tiny internal inclusions that are hardly detectable by the lens at 10x magnification even by an expert.
VVS Diamonds are rare, and on eye examination, they are in no way affected in their beauty.
Any surface characteristics are difficult to detect even with a 10x magnification lens by an expert.
VS1 / 2 Diamonds have slightly more visible internal characteristics than the superior category, even if the detection can only be seen by an expert with a 10x magnification lens.
VS1 / 2 Diamonds are considered by Torrini to be the most popular and the most affordable.
SI1 / 2 Diamonds have inclusions and internal or external characteristics easily detectable by the 10X magnification lens.
If the SI1 / 2 diamonds keep a good brilliance to the naked eye, they are often the ones with the best value.
SI1 / 2 Diamonds may have inclusions visible to the naked eye, especially when viewed from the side.
I1 / I2 / I3 diamonds have internal features visible to the naked eye and affect the stone's brilliance.
Torrini does not sell Category I Diamonds.
In 1953, the Gemological Institute of America established the graduation scale of the purity of diamonds. The GIA diamond grading scale is divided into 6 categories and 11 diamond clarity grades, as reported below:
Size
If the characteristic is very evident, it negatively affects the degree of purity.
Number
Refers to the number of easily visible features. The fewer observable characteristics there are, the higher the degree of purity.
Position
If an internal feature of the Diamond is located under the table or near the pavilion, it can affect the refraction. Therefore it can create a more evident impact on the degree of purity of the Diamond.
Nature
The Diamond crystal may have formed naturally with inclusions. The nature of a diamond feature is related to the type of inclusion and its impact on durability.
Remember that a Flawless (FL) or Internally Flawless (IF) Diamond belongs to the highest quality ever. The consequence of being extremely rare and therefore very expensive at the time of purchase. To escape from a too high evaluation, you should consider selecting a diamond with some inclusions that are not visible such as a VVS or VS purity.
Sometimes lowering the cost does not alter the beauty, luster, and brilliance of the diamond.
Some shapes or cuts of Diamonds require a higher purity than others. For example, the emerald cut or the Asscher cut requires a higher purity precisely because you can better see the possible presence of internal characteristics through the sparse stepped facets.
For these cuts, you must choose a higher grade of diamond such as IF or VVS to ensure that the internal inclusions are not seen with the naked eye.
Fancies Diamonds are measured on a separate color scale and have a higher value than colorless diamonds.
In the certificates issued by the GIA, diagrams express the mapping of any inclusions or internal characteristics present in a Diamond. They allow understanding if the interior features can have greater or lesser visibility to the naked eye.
For example, if the inclusions are positioned outside the diamond, they will be less visible than on the center of the stone.
Discover the quality elements of the diamond
A diamond's clarity is a fundamental characteristic of its brilliance of the gem. In the purity scale, diamond impurities are classified from "Internally Flawless" to "Included" visible to the naked eye.
A diamond's cut is a very delicate operation entrusted to expert cutting masters. The diamond is cut in many forms, among the main ones: round, oval, square, heart, pear, and emerald cut.
The carat represents the unit of weight adopted in the gem trade. Diamond is the gem with the highest specific weight. This aspect is reflected in the mass of the gem, which is heavier for the same size compared to all other precious stones.
Clarity is one of the “4Cs” that determines the final value of the stone. It is classified in degrees, many of which are not visible to the naked eye and require a ten-magnification lens that only a gemologist knows correctly to use.
The clarity grades are divided into 11 subdivisions established through an international scientific agreement. These characteristics concern the perfection of the crystal both inside and outside. They have a decisive influence on the rarity of the stone and therefore on its price.
Stains: are represented by scratches, veins or indentations include surface features such as scratches and indentations. Sometimes these can be easily removed by polishing the Diamond.
Inclusions: they are represented by internal characteristics detectable by a gemologist with a 10 magnification lens, sometimes with the presence of small infinitesimal feathers and/or gaseous or mineral crystals, other times with clearly visible streaks even with the naked eye.
These are not removable and therefore have an impact on the degree of purity of the stone and therefore on the final value.
A gemologist will evaluate the degree of clarity of each diamond thus determining the overall impact of inclusions and/or imperfections if they exist and which will determine their correct final classification.
The size of the possible inclusion is an element of judgment that is sometimes important also for the durability of the diamond. In fact, the diamond is the hardest mineral in the world but in the presence of serious internal fractures, it can also become the most fragile.
The nature of the internal characteristics of a diamond influence more consistently than external ones. Their position, for example, if under the central table, is much more visible than the same characteristics placed on the edges or under the facet of the crown or frame according to the type of cut. A fracture close to the surface of the stone is far more important than that placed inside it.
The higher the number of inclusions, the lower the degree of clarity and therefore brightness. The presence of inclusions within a diamond is naturally constituted as indelible identifiers and can help a gemologist to recognize the stone under examination as unique.
There are various grading scales for diamonds that are internationally recognized. The most important, the most widespread at the level of the various ScientificLaboratories that issue credible certifications is that of the GemologicalInstitute of America (GIA).
This scale has 11 degrees to define the clarity of a diamond; it goes from Flawless, or lack of internal characteristics visible with the 10-magnification lens, up to the degree of inclusions 3, or a stone with internal characteristics clearly visible to the naked eye. Following are the basic word terms for GIA Clarity grades. These are intended only as a general guideline.
FL- Flawless - Free from all inclusions or blemishes at 10x magnification.
IF - Internally Flawless - No inclusions visible at 10x but will have insignificant surface blemishes only.
VVS - Very Very Slightly Included 1 - Minuteinclusions that are extremely difficult to see at 10x.
VVS2, - Very Very Slightly Included 2- Minute inclusions that are very difficult to see at 10x.
VS - Very Slightly Included 1 - Minor inclusions that are difficult to see face-up at 10x.
VS2 - Very Slightly Included 2 - Minor inclusions that are somewhat easy to see face-up at 10x.
SI - Slightly Included 1- Noticeable inclusions that are easy to see at 10x.
SI2 - Slightly Included 2 - Noticeableinclusions that is very easy to see at 10x. They may also barely eye visible in larger stones or in smaller stones through the pavilion.
I1 - Included 1 - Obvious inclusions at 10x and visible to the unaided eye.
I2 - Included 2 - Obvious inclusions at 10xand easily visible to the unaided eye and they may pose a durability issue.
I3 - Included 3 - Prominent inclusions that are extremely easy to see with the unaided eye and usually will affect the durability.
Safeguarding consumer rights is important in the world of jewelry and therefore diamond grading certificates have become a very important part of the sector.
In particular, because the evaluation of the characteristics of a diamond can only be done with the appropriate instruments that are found only in specialized analysis laboratories.
Certificates play an important role in the world trade in cut diamonds. They record the nature and quality of the examined stone which then transmits the necessary confidence to a customer to proceed with the purchase in total safety.
The certificate issued by a prestigious laboratory, recognized as such by the world diamond market, contributes to increasing the value of the stone and making any subsequent transfer of ownership safe.
Smaller diamonds of 0.25 / 0.30 carats are usually not certified because of the excessive cost of the analysis.
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