Most diamonds have unique clarity characteristics, much like a fingerprint. These distinguishing characteristics can be classified as inclusions, blemishes, and clouds. Inclusions are enclosed within a diamond or extend into the diamond from its surface, while blemishes, on the other hand, are confined to the diamonds surface. A cloud is a cluster of very small inclusions inside a diamond that give a cloud effect. When light enters a diamond, it is reflected in and refracted out. If anything disrupts the flow of light through the diamond, such as inclusion, a proportion of the light reflected many be lost. This effect can detract from the pure beauty of the diamond.
To get the most value, Tiara Fine Jewelry, suggest selecting a diamond that is “eye clean” where no internal flaws are visible to the unaided eye. The table below depicts how a flaw (inclusion or blemish) may appear under 10X magnification.
Clarity refers to the absence of inclusions (imperfections) in the stone. The fewer the imperfections, the rarer and more valuable the diamond.
Many inclusions are not visible to the naked eye and require magnification to be apparent. A laboratory-certified clarity rating of SI2 represents the point at which inclusions are technically not apparent to the average naked eye.
Contrary to popular belief, higher clarity does not always mean more beautiful. If the inclusions are not visible to the naked eye, a higher clarity does not really improve the appearance of a diamond but rather the rarity and price. A higher clarity is more desirable and valuable, but knowing that you have selected the right clarity for the right reason is most important. I recommend a clarity of SI2 or better.