When buying a diamond, clarity is one of the most misunderstood factors.
Many buyers assume that a higher clarity grade automatically means a better diamond.
In reality, most clarity differences are not visible to the naked eye, and understanding this can save you a significant amount of money.
What Is Diamond Clarity?
Diamond clarity refers to the internal inclusions and external blemishes found in a diamond.
These natural characteristics are formed during the diamond’s creation deep within the earth.
Every diamond is unique, and almost all diamonds contain some level of inclusions.
Clarity is graded under 10x magnification, which means many of these imperfections are not visible without professional tools.
Diamond Clarity Scale
Here’s what each clarity grade actually means:
FL (Flawless)
No inclusions or blemishes visible under 10x magnification.
Extremely rare and priced at a premium.
To the naked eye, it looks identical to lower clarity grades.
IF (Internally Flawless)
No internal inclusions, only very minor surface blemishes.
Also extremely rare, with no visible difference compared to FL.
VVS1 – VVS2 (Very Very Slightly Included)
Inclusions are extremely small and very difficult to detect even under magnification.
These diamonds are always eye-clean.
VS1 – VS2 (Very Slightly Included)
Small inclusions that are difficult to see under magnification.
Almost always appear completely clean to the naked eye.
SI1 – SI2 (Slightly Included)
Inclusions are noticeable under magnification.
SI1 diamonds are often eye-clean, while SI2 diamonds may sometimes show visible inclusions depending on the stone.
I1 – I3 (Included)
Inclusions are visible to the naked eye and may affect both appearance and durability.
I1: Visible inclusions, sometimes acceptable depending on placement
I2: Clearly visible inclusions that impact appearance
I3: Heavy inclusions that can reduce brilliance and structural integrity
Rejection (Below I3)
Diamonds below I3 are considered rejected.
Inclusions are highly visible, affecting both appearance and durability, and these stones typically do not receive certification.
What “Eye-Clean” Really Means
An eye-clean diamond is one where no inclusions are visible without magnification.
This is one of the most important concepts in diamond buying.
A diamond can have a lower clarity grade but still appear perfectly clean when viewed normally.
The Biggest Mistake Buyers Make
One of the most common mistakes is overpaying for clarity that has no visible impact.
The difference between VVS, VS, and even some SI1 diamonds is often impossible to detect without magnification,
yet the price difference can be substantial.
How to Choose the Right Clarity
Instead of focusing only on the clarity grade:
- Choose diamonds that appear clean to the naked eye
- Pay attention to where inclusions are located (center vs edges)
- Balance clarity with cut, size, and overall appearance
- Understand that not all inclusions affect the beauty of the diamond
Certification Matters
Clarity grading should always come from a reliable laboratory.
The most trusted authority in the industry is the Gemological Institute of America.
This ensures the clarity grade is accurate, consistent, and unbiased.
Final Thought
Clarity is important — but only up to a certain point.
Beyond that, you are paying for details that you will likely never see.
A well-chosen diamond is not about having the highest grade,
but about choosing the one that looks right to you.
Looking for the right diamond?
I’ll help you choose the one that actually looks right — not just what’s written on paper. 💎
Send me a message or reach out on Instagram @the.diamond.cutter
