Diamond Clarity Guide | Clarity Chart, Scale & Best Ratings

June 9, 2026

What Is Diamond Clarity?

Diamond clarity refers to the presence of internal inclusions and external blemishes that naturally form as a diamond develops under extreme heat and pressure deep within the Earth. These characteristics are part of a diamond's natural growth process, making every stone unique. Clarity is one of the 4Cs of diamond quality along with Cut, Color, and Carat Weight and plays an important role in a diamond's appearance, rarity, and value.

Professional gemological laboratories, such as the Gemological Institute of America (GIA) and the International Gemological Institute (IGI), evaluate diamond clarity under 10× magnification. During grading, experts assess the size, number, position, nature, and visibility of inclusions and blemishes to assign an official clarity grade. Diamonds with fewer and smaller imperfections receive higher clarity grades and are generally rarer and more valuable.

It's important to understand that a higher clarity grade doesn't always mean a diamond will look more beautiful. Many diamonds graded VS1, VS2, and even eye-clean SI1 appear completely flawless to the naked eye while costing significantly less than Flawless (FL) or Internally Flawless (IF) diamonds. For this reason, experienced jewelers often recommend choosing an eye-clean diamond rather than paying a premium for imperfections that are only visible under magnification.

The impact of clarity also depends on the diamond's shape and size. Brilliant-cut diamonds, such as Round, Oval, Cushion, and Radiant, tend to hide inclusions better because of their exceptional sparkle. Step-cut diamonds, including Emerald and Asscher cuts, have larger open facets that make inclusions easier to see, so selecting a higher clarity grade is often recommended for these shapes.

When choosing a diamond, the goal isn't necessarily to buy the highest clarity grade, it's to find the best balance of beauty, quality, and value. For most engagement rings, diamonds with VS1 or VS2 clarity provide an excellent combination of brilliance, durability, and affordability. Buyers looking to maximize their budget can also consider a carefully selected eye-clean SI1 diamond, which offers outstanding value without compromising visual appeal.

Diamond Clarity Scale

The Diamond Clarity Scale is a standardized grading system used to evaluate the number, size, location, and visibility of a diamond's internal inclusions and external blemishes. Developed by the Gemological Institute of America (GIA), this internationally recognized scale helps buyers compare diamonds based on their clarity and make informed purchasing decisions.

The clarity scale ranges from Flawless (FL), which has no visible inclusions or blemishes under 10× magnification, to Included (I3), where imperfections are easily visible and may affect the diamond's brilliance and durability. While higher clarity grades are rarer and more expensive, they are not always the best choice for every buyer. Many diamonds in the VS1, VS2, and eye-clean SI1 range appear flawless to the naked eye and provide exceptional value.

Diamond Clarity Scale Chart

Clarity Grade	Full Name	Description	Visible to the Naked Eye?	Best For
FL	Flawless	No internal inclusions or external blemishes visible under 10× magnification.	No	Collectors and luxury buyers
IF	Internally Flawless	No internal inclusions, with only insignificant surface blemishes.	No	Premium-quality diamonds
VVS1	Very, Very Slightly Included 1	Minute inclusions that are extremely difficult to detect under magnification.	No	High-end engagement rings
VVS2	Very, Very Slightly Included 2	Tiny inclusions that are very difficult to see, even with magnification.	No	Fine jewelry and luxury purchases
VS1	Very Slightly Included 1	Minor inclusions visible only under magnification.	No	Excellent balance of quality and value
VS2	Very Slightly Included 2	Small inclusions that are usually invisible during normal viewing.	Usually No	One of the best value choices
SI1	Slightly Included 1	Noticeable inclusions under magnification but often eye-clean.	Sometimes	Budget-friendly engagement rings
SI2	Slightly Included 2	More visible inclusions that may be noticeable without magnification.	Sometimes	Affordable diamond jewelry
I1	Included 1	Obvious inclusions that may reduce brilliance.	Yes	Budget-conscious buyers
I2	Included 2	Significant inclusions that can affect appearance and durability.	Yes	Lower-cost diamonds
I3	Included 3	Heavy inclusions that are easily visible and may impact structural integrity.	Yes	Least recommended for everyday wear

Which Diamond Clarity Grade Is Best?

The ideal clarity grade depends on your priorities and budget. While FL and IF diamonds are exceptionally rare, most buyers don't need such high grades to enjoy a stunning diamond. In everyday wear, many VS1 and VS2 diamonds appear completely clean to the naked eye while offering substantial savings compared to flawless stones.

For shoppers seeking the best combination of beauty and value, GIA-graded VS2 diamonds are often considered the sweet spot. If you're working within a tighter budget, an eye-clean SI1 diamond can also provide excellent sparkle and visual appeal at a more affordable price.

Expert Buying Tip

Rather than paying a premium for a flawless clarity grade, prioritize a diamond with an Excellent Cut, then choose an eye-clean VS1, VS2, or SI1 clarity and a near-colorless G–H color grade. This combination delivers outstanding brilliance, beauty, and long-term value, making it one of the most popular choices for engagement rings and fine jewelry.

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Diamond Clarity Chart

A Diamond Clarity Chart is a simple visual guide that explains how diamonds are graded based on the number, size, location, and visibility of their natural inclusions and blemishes. The internationally recognized GIA Diamond Clarity Scale ranges from Flawless (FL) to Included (I3), helping buyers compare diamonds and understand how clarity influences a stone's beauty, rarity, and value.

Although diamonds with higher clarity grades are rarer and generally more expensive, they don't always look better to the naked eye. Many VS1, VS2, and eye-clean SI1 diamonds appear virtually flawless during everyday wear while offering significantly better value than higher-priced Flawless or Internally Flawless diamonds. For this reason, clarity should always be considered alongside the other 4Cs of diamond quality Cut, Color, and Carat Weight to choose the best diamond for your budget.

Diamond Clarity Chart

Clarity Grade	Full Name	Description	Visible to the Naked Eye?	Rarity	Value
FL	Flawless	No internal inclusions or external blemishes visible under 10× magnification.	No	Extremely Rare	★★★★★
IF	Internally Flawless	No internal inclusions; only insignificant surface blemishes.	No	Very Rare	★★★★★
VVS1	Very, Very Slightly Included 1	Minute inclusions that are extremely difficult to detect, even under magnification.	No	Rare	★★★★☆
VVS2	Very, Very Slightly Included 2	Tiny inclusions visible only to trained graders using magnification.	No	Rare	★★★★☆
VS1	Very Slightly Included 1	Minor inclusions that are difficult to see under 10× magnification.	No	Common	★★★★☆
VS2	Very Slightly Included 2	Small inclusions that are usually invisible without magnification.	Usually No	Popular	★★★★☆
SI1	Slightly Included 1	Noticeable inclusions under magnification, but many are eye-clean.	Sometimes	Common	★★★☆☆
SI2	Slightly Included 2	More visible inclusions that may be noticeable without magnification.	Often	Common	★★☆☆☆
I1	Included 1	Obvious inclusions that can reduce brilliance.	Yes	Less Rare	★☆☆☆☆
I2	Included 2	Significant inclusions that may affect both appearance and durability.	Yes	Less Rare	★☆☆☆☆
I3	Included 3	Heavy inclusions that are easily visible and may compromise structural integrity.	Yes	Least Rare	★☆☆☆☆

How to Read the Diamond Clarity Chart

The clarity chart is designed to help you understand how visible a diamond's natural characteristics are and whether they affect its appearance. As you move from FL to I3, inclusions become larger, more numerous, and easier to see. This generally lowers the diamond's rarity and price.

However, clarity alone doesn't determine how beautiful a diamond will look. A well-cut diamond with VS2 clarity can appear just as brilliant as a Flawless diamond in normal viewing conditions. That's why many jewelry professionals recommend choosing an eye-clean diamond instead of paying a premium for clarity characteristics that are only visible under magnification.

Which Diamond Clarity Grade Is Best?

The best clarity grade depends on your budget, the diamond's shape, and your personal preferences. For most engagement rings, VS1 and VS2 diamonds offer the ideal balance of brilliance, durability, and value because their inclusions are typically invisible to the naked eye. If you're looking to maximize your budget, a carefully selected eye-clean SI1 diamond can also provide exceptional beauty at a more affordable price.

For step-cut diamonds, such as Emerald and Asscher cuts, choosing a slightly higher clarity grade is often recommended because their larger, open facets make inclusions easier to see. Brilliant-cut diamonds, including Round, Oval, Radiant, and Cushion cuts, naturally hide inclusions more effectively, allowing buyers to select lower clarity grades without sacrificing visual appeal.

Expert Recommendation

If you're shopping for an engagement ring or fine jewelry, focus on an Excellent Cut, a G–H color grade, and a VS2 or eye-clean SI1 clarity. This combination provides exceptional sparkle, a bright white appearance, and outstanding value, making it one of the most popular choices among experienced jewelers and informed diamond buyers.

Diamond Clarity Rating

A diamond clarity rating is the grade assigned to a diamond based on the visibility, size, number, and location of its natural inclusions (internal characteristics) and blemishes (surface characteristics). These ratings help determine a diamond's rarity, overall appearance, and market value. Clarity is one of the internationally recognized 4Cs of diamond quality—Cut, Color, Clarity, and Carat Weight—and is evaluated by professional gemologists using 10× magnification.

The industry-standard clarity rating system was developed by the Gemological Institute of America (GIA) and is also used by other respected grading laboratories, including the International Gemological Institute (IGI). The scale ranges from Flawless (FL), the highest clarity rating, to Included (I3), where inclusions are clearly visible and may affect both the diamond's appearance and durability.

Diamond Clarity Rating Scale

Clarity Rating	Quality Level	Appearance	Ideal For
FL	Exceptional	Completely flawless under 10× magnification	Collectors and luxury buyers
IF	Excellent	No internal inclusions	Premium jewelry
VVS1–VVS2	Very High	Microscopic inclusions only	High-end engagement rings
VS1–VS2	High	Eye-clean in most diamonds	Best balance of quality and value
SI1–SI2	Good	Minor inclusions, many SI1 diamonds are eye-clean	Budget-conscious buyers
I1–I3	Fair	Visible inclusions that may affect brilliance	Entry-level or budget purchases

What Determines a Diamond's Clarity Rating?

A diamond's clarity rating isn't based on a single imperfection. Professional gemologists evaluate several factors before assigning a grade, including:

Size of inclusions: Larger inclusions generally have a greater impact on clarity.
Number of inclusions: Diamonds with fewer inclusions typically receive higher ratings.
Location: Inclusions near the center or table of the diamond are often more noticeable than those near the edges.
Nature of inclusions: Different types of internal characteristics can affect appearance in different ways.
Visibility: How easily inclusions can be seen under magnification and, in some cases, with the naked eye.

These factors work together to determine the final clarity rating shown on a diamond grading report.

Does a Higher Clarity Rating Mean a Better Diamond?

Not always. While higher clarity ratings indicate fewer natural characteristics, they don't automatically make a diamond look more beautiful. In everyday wear, many VS1, VS2, and carefully selected SI1 diamonds appear completely clean to the naked eye. Choosing one of these eye-clean clarity grades can provide exceptional sparkle while offering better value than paying a premium for a Flawless or Internally Flawless diamond.

Which Diamond Clarity Rating Is Best?

For most buyers, the ideal clarity rating is VS2 or VS1. These grades typically offer an eye-clean appearance, excellent brilliance, and strong overall value. If you're shopping on a tighter budget, an eye-clean SI1 diamond can also be an excellent choice, especially in brilliant-cut shapes such as Round, Oval, Cushion, and Radiant, which naturally help conceal small inclusions.

Rather than focusing only on the highest clarity rating, consider the diamond's cut quality, color grade, and overall visual appearance. A well-cut, near-colorless diamond with an eye-clean clarity rating often delivers the best combination of beauty, durability, and long-term value.

Diamond Clarity Characteristics: Inclusions & Blemishes

Every natural diamond is unique, and most contain tiny characteristics that formed during their creation deep within the Earth. These natural features are known as clarity characteristics and are divided into two categories: inclusions, which occur inside the diamond, and blemishes, which appear on the surface. Professional grading laboratories such as the Gemological Institute of America (GIA) and the International Gemological Institute (IGI) examine these characteristics under 10× magnification to determine a diamond's clarity grade.

It's important to remember that clarity characteristics are a natural part of a diamond's formation. In many cases, they are so small that they have no visible impact on the diamond's beauty or brilliance. Most buyers will never notice them during everyday wear, especially in well-cut diamonds.

What Are Diamond Inclusions?

Inclusions are internal features trapped within a diamond as it forms under intense heat and pressure. They vary in size, shape, color, and location, and each diamond has a unique pattern of inclusions. These natural characteristics help gemologists identify individual diamonds and confirm their authenticity.

Common types of diamond inclusions include:

Inclusion Type	Description	Impact on Appearance
Crystal	A tiny mineral crystal enclosed within the diamond.	Usually invisible unless large or near the center.
Feather	A small internal fracture that often resembles a feather.	Typically harmless when small but may affect durability if large or close to the surface.
Cloud	A cluster of microscopic pinpoints grouped together.	Large clouds can slightly reduce transparency or brilliance.
Pinpoint	A tiny crystal visible only under magnification.	Minimal to no visible effect.
Needle	A long, slender crystal inside the diamond.	Rarely noticeable without magnification.
Twinning Wisp	An irregular growth pattern created during diamond formation.	Usually has little impact on appearance.
Internal Graining	Natural growth lines within the diamond's crystal structure.	Often visible only under magnification.

What Are Diamond Blemishes?

Blemishes are external surface characteristics that usually develop during the cutting, polishing, or everyday handling of a diamond. Unlike inclusions, blemishes are found on the outside of the stone and generally have less influence on a diamond's durability.

Common surface blemishes include:

Blemish Type	Description	Impact on Appearance
Polish Lines	Fine lines left during the polishing process.	Usually invisible without magnification.
Natural	A small portion of the original rough crystal left on the girdle.	Generally does not affect beauty.
Scratch	A minor surface mark caused during handling or wear.	Often removable during repolishing.
Nick	A tiny chip along the facet edge or girdle.	Usually minor but should be inspected.
Pit	A very small opening on the diamond's surface.	Typically difficult to notice.
Abrasion	Slight wear along facet edges after prolonged use.	May slightly reduce sharpness but is often repairable.

How Inclusions and Blemishes Affect Diamond Quality

Not all clarity characteristics have the same impact. Their effect depends on several factors, including their size, number, location, color, and visibility. Small inclusions located near the edge of a diamond are often hidden by the setting and have little to no effect on appearance. Larger inclusions positioned beneath the table—the large top facet—are generally easier to detect and may influence the clarity grade more significantly.

The diamond's shape also plays an important role. Brilliant-cut diamonds, such as Round, Oval, Cushion, and Radiant cuts, reflect light in a way that naturally disguises many small inclusions. Step-cut diamonds, including Emerald and Asscher cuts, have broad, open facets that make internal characteristics easier to see, so choosing a higher clarity grade is often recommended for these shapes.

Should You Worry About Diamond Inclusions?

In most cases, no. Many diamonds with VS1, VS2, and even carefully selected SI1 clarity grades appear completely eye-clean, meaning their inclusions cannot be seen without magnification. These diamonds offer exceptional beauty while costing significantly less than Flawless or Internally Flawless stones.

Rather than searching for a diamond with no imperfections, focus on finding one with clarity characteristics that are not visible during normal viewing. An eye-clean diamond provides the same visual beauty as higher clarity grades while offering much better overall value.

Expert Buying Tip

When evaluating a diamond, don't judge its quality by the number of inclusions alone. Consider where the inclusions are located, how noticeable they are, and whether they affect the diamond's sparkle or durability. A well-cut diamond with a VS2 or eye-clean SI1 clarity grade often delivers the perfect balance of brilliance, quality, and value, making it an excellent choice for engagement rings and fine jewelry.

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Diamond Clarity Tips

Choosing the right diamond clarity isn't about buying the highest grade—it's about finding the best balance between beauty, quality, and value. Many shoppers assume they need a Flawless diamond to get exceptional sparkle, but in reality, most inclusions in well-selected diamonds are invisible without magnification. These expert tips will help you make a confident and informed decision.

1. Prioritize an Eye-Clean Diamond

An eye-clean diamond has inclusions that cannot be seen during normal viewing, even though they may be visible under 10× magnification. For most buyers, an eye-clean diamond offers the same visual beauty as a much higher clarity grade while costing significantly less.

2. Choose VS1 or VS2 for the Best Value

VS1 and VS2 clarity grades are widely considered the sweet spot for engagement rings. These diamonds typically appear flawless to the naked eye and provide an excellent balance of brilliance, durability, and price.

3. Consider an Eye-Clean SI1 Diamond

If you're shopping within a budget, a carefully selected SI1 diamond can be an outstanding value. Many SI1 diamonds look identical to higher clarity grades without magnification, allowing you to invest more in cut quality or carat weight.

4. Never Sacrifice Cut Quality for Clarity

A diamond's cut has the greatest impact on its sparkle. An Excellent or Ideal Cut diamond with VS2 clarity will usually look more brilliant than a poorly cut Flawless diamond. Whenever possible, prioritize cut before paying extra for higher clarity.

5. Match Clarity to the Diamond Shape

Different diamond shapes hide inclusions differently. Brilliant-cut shapes such as Round, Oval, Cushion, Princess, and Radiant naturally conceal small inclusions, making VS2 or SI1 excellent choices. Step-cut shapes like Emerald and Asscher have larger, open facets that make inclusions easier to see, so many buyers prefer VS1 or higher for these cuts.

6. Consider the Size of the Diamond

As a diamond's carat weight increases, inclusions may become easier to notice. If you're purchasing a larger diamond, choosing a slightly higher clarity grade can help maintain a clean appearance.

7. Review the Diamond Grading Report

Always purchase a diamond with a grading report from a respected laboratory such as GIA or IGI. The report provides an independent assessment of the diamond's clarity, color, cut, and carat weight, giving you confidence in your purchase.

8. Look Beyond the Clarity Grade

Two diamonds with the same clarity grade can look different. The size, type, location, and color of inclusions all influence visibility. Whenever possible, review high-resolution images or videos to see how the diamond appears in real life rather than relying solely on the grade.

9. Match Clarity to Your Budget

If your budget is limited, choose a slightly lower clarity grade and invest the savings in a better cut or a larger carat weight. Most buyers notice sparkle and overall appearance long before they notice microscopic inclusions.

10. Buy from a Trusted Jeweler

Choose a reputable jeweler that offers certified diamonds, detailed product information, clear return policies, and knowledgeable customer support. An experienced jeweler can help you select an eye-clean diamond that delivers exceptional beauty and long-term value.

Conclusion

For most engagement rings, a G–H color, VS2 clarity, and an Excellent Cut provide one of the best combinations of brilliance, appearance, and value. If you're looking to maximize your budget, an eye-clean SI1 diamond can also be an excellent choice, especially in brilliant-cut shapes where small inclusions are naturally less noticeable.

What is the best diamond clarity?

For most buyers, VS1 or VS2 clarity offers the best balance of beauty, quality, and value. These diamonds are typically eye-clean and cost less than Flawless or VVS grades.

What is diamond clarity?

Diamond clarity measures the presence of internal inclusions and surface blemishes. It is one of the 4Cs used to evaluate a diamond's overall quality.

What is a good diamond clarity?

A good diamond clarity is VS2, VS1, or an eye-clean SI1. These grades usually appear flawless to the naked eye while offering excellent value.

What does diamond clarity mean?

Diamond clarity refers to how free a diamond is from natural inclusions and blemishes. Higher clarity grades have fewer visible imperfections.

What is a clarity enhanced diamond?

A clarity enhanced diamond is a natural diamond that has been treated to reduce the visibility of inclusions, improving its appearance at a lower cost than untreated diamonds.

What diamond clarity is eye clean?

Most VS1 and VS2 diamonds are eye-clean. Many SI1 diamonds are also eye-clean, depending on the size and location of the inclusions.

What clarity diamond is best for an engagement ring?

VS2 clarity is one of the best choices for engagement rings because it offers an eye-clean appearance, excellent brilliance, and great value.

What's more important in a diamond, color or clarity?

For most buyers, cut quality is the most important factor. Between color and clarity, a near-colorless diamond with eye-clean clarity usually provides the best overall appearance.

How does diamond clarity affect a diamond's price?

Higher clarity grades are rarer and generally more expensive. However, many eye-clean VS and SI diamonds look just as beautiful while costing significantly less.

Does clarity apply to side stones and accent diamonds?

Yes, clarity also applies to side stones and accent diamonds. However, because these diamonds are smaller, slightly lower clarity grades are often acceptable without affecting their appearance.