When shopping for a diamond, clarity plays a major role in appearance and value. But what do terms like VS1, SI2, or FL actually mean? This complete diamond clarity chart guide breaks down every clarity grade in simple language — so you can understand what you’re paying for and choose wisely.
🔍 Quick Answer: What is the diamond clarity chart?
The diamond clarity chart ranks diamonds based on the number, size, and visibility of internal flaws (inclusions) and surface imperfections (blemishes). Clarity grades range from:
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FL (Flawless)
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IF (Internally Flawless)
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VVS1 / VVS2 (Very Very Slightly Included)
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VS1 / VS2 (Very Slightly Included)
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SI1 / SI2 (Slightly Included)
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I1 / I2 / I3 (Included)
Higher clarity means fewer visible imperfections.
💎 What Is Diamond Clarity?
Clarity measures how “clean” a diamond appears under 10x magnification. Nearly all diamonds contain natural internal characteristics formed during their creation deep within the earth.
These characteristics include:
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Inclusions (internal flaws)
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Blemishes (surface imperfections)
Clarity affects both beauty and price.

📊 The Complete Diamond Clarity Chart
Here is a simplified breakdown of the clarity grading scale used by major gemological institutions:
| Grade | Meaning | Visibility of Inclusions |
|---|---|---|
| FL | Flawless | No inclusions or blemishes visible under 10x magnification |
| IF | Internally Flawless | No internal inclusions, only minor surface blemishes |
| VVS1 | Very Very Slightly Included | Extremely difficult to see under 10x |
| VVS2 | Very Very Slightly Included | Very difficult to detect under 10x |
| VS1 | Very Slightly Included | Minor inclusions, difficult to see |
| VS2 | Very Slightly Included | Slightly easier to detect under magnification |
| SI1 | Slightly Included | Noticeable under 10x, usually eye-clean |
| SI2 | Slightly Included | May be visible to the naked eye |
| I1 / I2 / I3 | Included | Visible inclusions affecting appearance |
✨ What Clarity Grade Should You Choose?
Most experts recommend:
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VS1 or VS2 for excellent balance of beauty and value
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SI1 if eye-clean and budget-friendly
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Avoid I-grade diamonds for engagement rings
The key is choosing a diamond that appears clean to the naked eye.
💡 Do Higher Clarity Diamonds Sparkle More?
Not necessarily.
Sparkle depends mostly on cut quality, not clarity.
A perfectly cut VS2 diamond may appear more brilliant than a poorly cut FL diamond.
Always prioritize cut first, clarity second.

🧠 What Are Diamond Inclusions?
Common inclusions include:
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Feathers (tiny cracks)
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Pinpoints (small crystals)
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Clouds (tiny grouped inclusions)
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Needles (thin internal lines)
Most inclusions are invisible without magnification.
💎 Clarity vs Price
Price increases dramatically at the higher clarity levels.
For example:
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FL diamonds are extremely rare and expensive
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VS diamonds look nearly identical to VVS but cost much less
This is why many smart buyers choose VS or SI1 diamonds.
🛍 Clarity & Diamond Shape
Certain diamond shapes show inclusions more clearly:
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Step-cut shapes (emerald, baguette) show inclusions more easily
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Brilliant cuts (round, oval) hide inclusions better
Shape affects ideal clarity choice.

✨ Lab-Grown Diamonds & Clarity
Lab-grown diamonds often have:
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Higher clarity grades
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Fewer inclusions
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More affordability at higher grades
They follow the same clarity chart grading scale.
📝 Final Buying Tips
When using the diamond clarity chart, remember:
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Eye-clean matters more than technical perfection
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Prioritize cut quality
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VS and SI1 often offer best value
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Don’t overpay for clarity you can’t see
The best diamond balances clarity, sparkle, and budget.
✨ Stella Amore Insight
When selecting diamond jewelry:
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Choose eye-clean clarity
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Prioritize brilliant cut
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Balance quality with personal budget
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Focus on sparkle and beauty
📝 Final Thoughts
The diamond clarity chart helps you understand what makes a diamond clean, valuable, and visually beautiful. While flawless diamonds exist, most buyers achieve the best balance by choosing clarity grades that look stunning without unnecessary cost.
Remember — clarity matters, but brilliance comes from expert cutting.
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