A Guide to Understanding Diamond Clarity

Diamond Clarity Scale Guide

Purchasing a diamond involves more than what initially meets the eye. One of the paramount factors to consider is diamond clarity, which denotes the absence of inclusions and blemishes. Let Silk & Steel guide you through this crucial aspect of diamonds.

Understanding diamond clarity

Diamond clarity, in its simplest terms, refers to the purity or clearness of a diamond. It gauges the presence, size, and position of inclusions (natural imperfections) and blemishes (surface flaws) within a diamond. These inclusions can be minerals, fractures, or even other tiny diamonds. A higher clarity grade indicates fewer inclusions, leading to a more valuable diamond.

Clarity grade

The esteemed Gemological Institute of America (GIA) has devised a diamond clarity grading system recognised and respected worldwide. This system ranges from Flawless (with no inclusions or blemishes under 10x magnification) to Included (inclusions and/or blemishes visible without magnification).

This grading, termed the "Clarity Code" by GIA, reveals more than just a gem's perfection. It showcases the individual charm and distinctive personality of each diamond. The system captures the unique characteristics of each diamond, from Flawless, where no imperfections can be seen under 10x magnification, to Included, where imperfections are clearly visible.

The mission of GIA is to help you appreciate the true value of your precious gem, understanding that every diamond tells its own unique story.

Clarity grades explained


These diamonds are exceptionally rare and sought after, with no visible imperfections under 10x magnification. They represent perfection in the diamond realm, standing out due to their unrivalled clarity.


Internally flawless

These diamonds appear perfect to the unaided eye. Under 10x magnification, however, minor surface blemishes might be visible. They lack internal inclusions, making them valuable and desirable.

Very, very slightly included (VVS)

Exceptional diamonds with nearly undetectable inclusions under 10x magnification. Their inclusions are so minute that they're nearly impossible to discern, even under 10x magnification.

Very slightly included (VS)

Diamonds in this category have minute inclusions, difficult to detect under 10x magnification. These diamonds balance exceptional quality with beauty, captivating those who appreciate detail and perfection.

Slightly included (SI)

These diamonds have inclusions noticeable under magnification but might not be evident to the unaided eye. Their clarity plays a significant role in their overall beauty and value, offering a harmonious blend of sparkle and affordability.

Included (I)

Diamonds with this grade reveal evident inclusions under 10x magnification. These internal marks can affect the diamond's transparency and brilliance. When choosing a diamond, remember that its value isn't solely based on its size but also on the clarity of its composition.

Heavily included

Diamonds in this category have numerous inclusions visible to the unaided eye. Their clarity, a key factor in assessing a diamond's quality and value, is notably affected. Though they might not possess the brilliance of flawless diamonds, they still reflect nature's unique design.

The importance of a clarity certificate

When buying a diamond, obtaining a clarity certificate from a reputable gemological laboratory, like the GIA, is essential. This certificate affirms the diamond's clarity grade and ensures its quality and value. It provides a comprehensive overview of the diamond's characteristics, including inclusions, blemishes, and any treatments. A clarity certificate from a trusted lab ensures that you invest in a quality gemstone.

Understanding diamond clarity significantly impacts your diamond purchase, affecting both its value and aesthetic appeal. At Silk & Steel, we prioritise quality, craftsmanship, and exceptional customer experiences.

Whether you're in search of a flawless diamond or one with unique inclusions, Silk & Steel is dedicated to guiding you with our personalised jewellery services. Always remember, a diamond's true beauty is both in its physical appearance and the emotion it evokes in you. Every diamond, like its owner, has a distinctive intrinsic beauty.


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