Clarity
What is intersting about clarity is a majority of the scale is based on 10X magification. Before discussing the range, it is imporatnt to understand what an inclusion is and how they can affect the diamond. Think of an inclusion as a birthmark within the stone, it grows whent the stone is forming underground and remains after cutting and polishing to retain weight and beauty of the stone. Inclusions can we white, black and even clear inside a diamond and clarity is how hard or easy they are to see.
As with all things relating to diamonds, clarity, is a range. The I range (I3-I1) means that with the unaied eye you are going to see some inclusions that can affect the sparkle of the stone. Next on the scale is the SI range (SI2-SI1) this is where 10x power becomes important becuase these inclusions are not visbile without power, but are easy to see with maginfication. As we increase the scale to VS (VS2-VS1) and VVS (VVS2-VVS1) the inclusions get smaller, and harder to find with magification and are not seen with an unaided eye. Once you reach Internally Flawless and Flawless the diamond has little to no inclusions inside or on the surface of the stone.
Pro Tip: With the unaided eye SI2 all the way Flawless look very similar, so keep in mind you are looking at the stone everyday, not the paperwork.
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