Diamond Clarity Guide
Diamond clarity is one of the 4 Cs of diamond quality. In our diamond clarity guide, we explain everything you need to know about diamond clarity so you can find the perfect diamond for your jewellery.
what are diamond inclusions?
Diamond inclusions are natural flaws found within a diamond. They can appear black, grey or white in appearance. Inclusions are created naturally due to extreme heat and pressure within the Earth's mantle during diamond formation. Diamonds can take between one to three billion years to grow within the Earth, so the chances are low of finding a perfect one, which is why flawless diamonds are rare and valuable.
how to measure diamond clarity?
Diamond clarity is measured by assessing imperfections under 10x magnification, which is the standard for grading diamond clarity. Several factors are taken into consideration when measuring diamond clarity, such as:
- Number of inclusions.
- Position of inclusions.
- Nature of inclusions.
- Size of inclusions.
- Colour of inclusions.
Diamond clarity scale chart
The diamond clarity chart shows that the clarity of diamonds scale ranges from Flawless (FL) to Inclusion (I1), with Flawless being the most desirable.
FL - FLAWLESS
Flawless (FL) diamonds have no blemishes or inclusions visible under 10x magnification. Diamonds graded as Flawless are very rare as inclusions are naturally occurring.
VVS1/VVS2 - Very Very Slight Inclusion
Very Very Slight Inclusion (VVS1/VVS2) diamonds have only slight inclusions that are difficult for a skilled grader to see under 10x magnification.
VS1/VS2 - Very Slight Inclusion
Very Slight Inclusion (VS1/VS2) diamonds have minor inclusions that can be seen with effort under 10x magnification.
SI1/SI2 - Slight Inclusion
Slight Inclusion (SI1/SI2) diamonds have noticeable inclusions under 10x magnification.
I1 - Inclusion
Inclusion (I1) diamonds have inclusions that are obvious under 10x magnification. The inclusions affect the diamond's brilliance and transparency.
How does clarity affect a diamond?
Clarity affects a diamond and its ability to sparkle. A high number of inclusions can affect a diamond's transparency and brilliance. A diamond with many inclusions will appear dull and lacklustre compared to one with very few or no inclusions.
What is the best clarity for a diamond?
The best diamond clarity for a diamond is Flawless (FL), but this doesn't necessarily mean the most beautiful diamond. It is always important to consider the 4 Cs of diamond quality and how they affect each other. For example, diamond carat can impact how noticeable inclusions are, as inclusions are likely to be more visible in a larger diamond than a smaller diamond of the same clarity.
Diamond colour and clarity
Diamond colour and clarity are very different. Diamond clarity refers to the imperfections within a diamond, whereas diamond colour refers to the shade or hue of a diamond. Although they are assessed differently, clarity and colour can work harmoniously together to achieve the perfect diamond. For example, a small amount of colour within a diamond can be a good thing, as it can help mask any inclusions it may have.
If you are looking to buy jewellery such as a diamond ring, carat weight, diamond cut, and colour should be considered alongside diamond clarity to choose the best diamond for your budget. For further information about the 4 Cs, head to our diamond education guide.