Diamond Clarity
What is Diamond Clarity?
While clarity significantly influences a diamond’s worth, it’s worth noting that most of these imperfections remain imperceptible to the naked eye. During its formation, natural microscopic traits can become enclosed within or appear on the diamond’s surface. Diamond clarity pertains to the inherent purity and rarity of the gemstone, as well as the extent to which it showcases imperfections and inclusions. Gemologists meticulously evaluate these internal and external features using 10x magnification and a qualitative grading system to assign a numerical value, which is known as the clarity grade, to each diamond.
The clarity grade rises as the number of imperfections and flaws affecting the diamond’s visual appeal decreases. It’s essential to understand that no diamond can ever be entirely flawless, but the closer it comes to purity, the clearer it appears. Diamonds that exhibit little to no inclusions are exceedingly rare and hold a high market value.
Slightly included 2. Inclusions are visible under 10x magnification and may be visible with an unaided eye. More inclusions than SI1.
Slightly included 1. Inclusions are visible under 10x magnification, but may not be very visible with an unaided eye.
Very slightly included 2. Difficult to see inclusions under 10x magnification. Typically cannot see inclusions with the naked eye. Slightly more inclusions than VS1.
Very slightly included 1. Difficult to see inclusions under 10x magnification. Typically cannot see inclusions with the naked eye.
Very very slightly included 2. Very difficult to see under 10x magnification. Slightly more inclusions than VVS1.
Very very slightly included 1. Very difficult to see under 10x magnification.
Internally Flawless. No internal flaws.
Flawless with no internal or external flaws. Extremely rare and valuable.
Determining Clarity Grades and the Diamond Clarity Scale
The process of determining diamond clarity involves a comprehensive examination of the number, dimensions, visibility, category, and placement of microscopic traits within the diamond, as well as their impact on its visual appearance. Skilled gemologists employ a 10x magnification method to identify and categorize these clarity characteristics based on their dimensions, characteristics, and positions.
Subsequently, these features are graphically represented on what is referred to as a ‘diamond plot,’ a unique visual representation for each individual diamond. Accredited gemological laboratories like GIA and IGI employ a scale that ranges from ‘Included’ to ‘Flawless’ to gauge and communicate the clarity levels of diamonds.
Diamond Clarity Grading
When assessing diamond clarity, it’s crucial to understand the various grades:
FL/IF
VVS1
VVS2
Very Very Slightly Included 2
VS1/VS2
Very Slightly Included 1
VS1/VS2 diamonds have inclusions that can be observed with a jeweler’s loupe. Nevertheless, they are still quite small and typically remain invisible to the naked eye.
SI1
SI2
Slightly Included 2
Varieties of Diamond Inclusions
Graining
Cloud
Feather
Cavity
FAQ on Diamond Clarity
Certain diamond shapes can be more forgiving of clarity imperfections, making inclusions less noticeable:
Brilliant Cuts (Round, Oval, Marquise, Pear, and Heart): These cuts have many facets and intense sparkle, which can help mask inclusions.
Princess Cut: The princess cut’s sharp corners and brilliant faceting pattern can also hide inclusions well.
Cushion Cut: Cushion cuts have a slightly rounded shape with many facets, which can help diffuse light and reduce the visibility of inclusions.
On the other hand, step cuts like Emerald and Asscher have large, open facets that can make inclusions more noticeable, so higher clarity grades are often preferred for these shapes.