Lab Grown Diamond Clarity Chart: Understanding Diamond Clarity Grades

Lab Grown Diamond clarity measures the presence of internal inclusions and external blemishes inside a diamond. In lab grown diamonds, clarity is graded using the same industry standards applied to natural diamonds, including grading systems developed by the Gemological Institute of America and IGI. These clarity grades range from Flawless (FL) to Included (I), helping buyers understand how visible imperfections may affect a diamond’s appearance, rarity, and value.

A lab grown diamond clarity chart simplifies this grading system by showing how inclusions become more noticeable across different clarity levels. Although lab-created diamonds are grown in controlled environments, they can still contain microscopic growth characteristics formed during the HPHT or CVD creation process. Understanding the difference between VS, VVS, SI, and IF clarity grades helps buyers avoid overpaying for invisible quality differences while selecting a diamond that looks clean to the naked eye.

This guide explains every clarity grade, how clarity affects pricing and sparkle, and which clarity level offers the best value for engagement rings and fine jewelry.

What Is Lab Grown Diamond Clarity?

Lab Grown Diamond clarity describes how free a diamond is from internal inclusions and external blemishes. Clarity grading helps determine both visual appearance and market value because fewer imperfections generally mean greater rarity. Diamond clarity measures the visibility and severity of internal inclusions and surface blemishes within a diamond. Gemologists evaluate factors such as inclusion location, size, visibility, and overall transparency when determining the clarity grade.

The final clarity grade reflects how noticeable these characteristics appear under magnification, typically using 10x magnification during professional grading.

Lab Grown Diamond Clarity Strongly Influences Appearance and Value

Higher clarity Lab Grown diamonds usually appear cleaner and rarer. However, many inclusions remain invisible without magnification.

As clarity improves:

• Rarity increases
• Pricing rises sharply
• Visual improvement becomes less noticeable

This is why many buyers prioritize “eye-clean” appearance instead of flawless grading.

Lab Grown Diamond Clarity Is Graded Under Magnification

Lab Grown Diamond clarity grading occurs under 10x magnification using controlled lighting and professional gemological standards.

Organizations such as GIA and IGI examine:

• Inclusion visibility
• Inclusion position
• Number of imperfections
• Contrast and transparency effects

Even lab grown diamonds follow the exact same grading scale used for mined diamonds.

Learn more: Should I Buy A Lab Grown Diamond?

Lab Grown Diamond Clarity Explained

Understanding each clarity grade helps buyers balance beauty, budget, and long-term value expectations.

1. FL (Flawless)

Flawless lab diamonds contain no visible inclusions or blemishes under 10x magnification.

These lab grown diamonds are extremely rare and command premium pricing. Most buyers do not need FL clarity because the visual difference compared to lower grades is often minimal to the naked eye.

Best for:

• Collectors
• Luxury investment jewelry
• Prestige-focused buyers

2. IF (Internally Flawless)

Internally Flawless diamonds contain no internal inclusions, though minor surface blemishes may exist.

IF diamonds still appear perfectly clean during everyday wear and remain highly valuable in the luxury market.

Best for:

• High-end engagement rings
• Luxury gifting
• Buyers prioritizing rarity

3. VVS1 and VVS2 (Very Very Slightly Included)

VVS diamonds contain extremely tiny inclusions that are very difficult to detect under magnification.

Most VVS diamonds appear completely eye-clean, even in larger carat sizes.

Differences between VVS1 and VVS2 are typically microscopic and visible only to trained graders.

Best for:

• Premium engagement rings
• Large diamonds
• Buyers wanting near-perfect clarity

4. VS1 and VS2 (Very Slightly Included)

VS clarity grades offer one of the best value balances in the diamond market.

Inclusions are minor and usually invisible without magnification.

Most VS1 and VS2 diamonds appear eye-clean while costing significantly less than VVS or IF grades.

Best for:

• Most engagement ring buyers
• Everyday fine jewelry
• Buyers balancing quality and budget

Many shoppers exploring luxury lab grown diamond rings choose VS clarity because it delivers strong visual quality without premium-level pricing.

5. SI1 and SI2 (Slightly Included)

SI diamonds contain more noticeable inclusions under magnification.

Some SI1 diamonds remain eye-clean, especially in smaller stones or brilliant cuts. SI2 clarity becomes riskier because inclusions may become visible without magnification.

Best for:

• Budget-conscious buyers
• Smaller carat sizes
• Brilliant-cut lab grown diamonds that conceal inclusions better

6. I1, I2, and I3 (Included)

Included lab grown diamonds contain visible inclusions that may affect transparency, sparkle, and structural durability.

These grades are rarely recommended for engagement rings because imperfections often become visible during normal viewing.

Best for:

• Extremely limited budgets
• Fine jewelry with smaller accent stones

Here is the lab grown diamond clarity chart to easy catch up:

Learn more: Do Lab Grown Diamonds Pass a Diamond Tester?

Do Lab Grown Diamonds Have Better Clarity Than Natural Diamonds?

Lab grown diamonds often display higher average clarity than natural diamonds because they are created in controlled laboratory environments rather than unpredictable geological conditions. Manufacturers can regulate temperature, pressure, growth speed, and crystal conditions more precisely, which helps reduce many of the random inclusions commonly found in mined diamonds.

1. HPHT and CVD Diamonds Develop Different Types of Inclusions

The two main lab grown diamond production methods, High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD), create different internal characteristics.

HPHT Diamonds May Contain Metallic Inclusions

HPHT diamonds can contain microscopic metallic inclusions, flux remnants, or crystal irregularities formed during high-pressure growth. Modern manufacturing methods have reduced these issues significantly, although lower-quality stones may occasionally show reduced transparency.

CVD Diamonds May Show Growth Striations

CVD diamonds may develop faint growth striations, grain lines, or subtle internal clouds caused by layered carbon deposition during the growth process. These characteristics are usually only visible under professional magnification.

2. Clarity Can Still Vary Between Individual Stones

Even with controlled manufacturing, clarity can still differ between lab grown diamonds because multiple production factors influence the final result. Growth duration, crystal stability, cutting precision, and post-growth treatments all contribute to the final clarity grade. This is why lab grown diamonds still require independent grading and professional quality evaluation.

Explore more: Lab-Grown Diamonds vs Natural Diamonds: 7 Key Eco-Friendly Benefits You Need to Know

What Is an Eye-Clean Lab Grown Diamond?

An eye-clean lab grown diamond appears free of visible inclusions when viewed with the naked eye under normal viewing conditions. In most cases, “eye-clean” means that internal imperfections cannot be seen from approximately 6–10 inches away in standard lighting without magnification tools.

The term does not mean the lab grown diamond is flawless. Most eye-clean diamonds still contain microscopic inclusions that can only be detected under professional magnification or during grading. The difference is that these inclusions are not noticeable during normal everyday wear.

Eye-Clean Standards Can Vary Between Retailers

There is no single universal definition for an eye-clean diamond. Some retailers evaluate eye-cleanliness from a closer viewing distance or under brighter lighting conditions than others. Because of this, one diamond may be considered eye-clean by one seller but not by another.

Many VS-Clarity Lab Grown Diamonds Appear Eye-Clean

Many lab grown diamonds in the VS1 and VS2 clarity range appear eye-clean to most buyers. Some SI1 diamonds may also appear eye-clean depending on the size, location, and type of inclusions within the stone.

Inclusion Placement Affects Visible Appearance

The visibility of inclusions often depends on where they are located. Inclusions near the center of the diamond or directly under the table facet are generally easier to notice than inclusions positioned near the edges or hidden by sparkle and light reflection.

How Diamond Shape Affects Clarity Visibility?

Diamond shape strongly influences how visible inclusions appear because different facet patterns interact with light in different ways. Some shapes are better at hiding internal imperfections, while others make inclusions easier to detect.

Round brilliant diamonds usually conceal inclusions most effectively because their facet structure maximizes sparkle, brilliance, and light return. The intense reflection patterns help disguise many small inclusions, allowing round diamonds to tolerate lower clarity grades more successfully than many other shapes.

Oval and cushion cut diamonds also hide inclusions relatively well, although elongated shapes may make center inclusions more noticeable under certain lighting conditions. The visibility often depends on the size and placement of the inclusion within the stone.

Step-cut lab grown diamonds such as emerald and Asscher cuts reveal inclusions more clearly because they feature large open facets and greater transparency. These shapes emphasize clarity and internal visibility rather than sparkle concealment, which is why higher clarity grades such as VS1 or VVS2 are often recommended.

Pear and marquise lab grown diamonds may expose inclusions near the pointed tips more easily. In these shapes, proper setting protection becomes important because the pointed ends are both visually sensitive and structurally vulnerable.

In general, brilliant cuts prioritize sparkle and help hide inclusions, while step cuts emphasize transparency and make clarity characteristics easier to see. This difference significantly affects the recommended clarity grade for each lab grown diamond shape.

Lab Grown Diamond Color and Clarity Chart

Color and clarity work together to influence overall appearance.

How Color and Clarity Work Together

A perfectly clear diamond may still appear warm if color grading is low.

Balancing both factors creates better value optimization.

Best Color-Clarity Combinations

Popular combinations include:

• D–F color with VS clarity
• G–H color with VS2 clarity
• H–I color with SI1 clarity for budget buyers

Avoiding Overpaying for High Clarity

Many buyers overspend on VVS clarity while ignoring cut quality.

Excellent cut quality usually impacts beauty more than microscopic clarity improvements.

Recommended Pairings by Budget

Budget-conscious shoppers often prioritize:

1. Cut quality
2. Eye-clean clarity
3. Balanced color grade

This strategy improves visual impact while controlling costs.

IGI vs GIA Clarity Grading for Lab Grown Diamonds

Certification plays a major role in buyer confidence.

Why IGI Grades Most Lab Grown Diamonds

IGI dominates the lab grown market because it adopted lab-diamond grading earlier and processes high certification volumes efficiently.

GIA Lab Grown Diamond Reports

GIA also grades lab grown diamonds using strict gemological standards.

Many luxury buyers still recognize GIA as the industry benchmark.

Differences in Grading Consistency

Some buyers perceive GIA grading as slightly stricter than IGI, though both organizations remain highly respected.

Which Certification Buyers Prefer

Most shoppers prioritize:

• Trusted grading consistency
• Transparent reporting
• Laser inscription verification

Both IGI and GIA satisfy these expectations.

How Clarity Affects Lab Grown Diamond Prices?

Clarity strongly influences diamond pricing, especially at higher grades.

Price Differences Between Clarity Grades

Lab grown Diamond prices increase significantly as clarity grades move from VS to VVS, VVS to Internally Flawless (IF), and IF to Flawless (FL). Even small improvements in microscopic clarity characteristics can create major price increases.

However, visual differences become harder to notice at higher clarity levels. Most buyers cannot distinguish VS diamonds from VVS diamonds or VVS diamonds from IF diamonds without magnification. Because of this, higher clarity grades often create diminishing visual returns despite higher pricing.

Diminishing Returns Above VS Grades

Most buyers cannot visually distinguish a VS diamond from a VVS diamond or a VVS diamond from an Internally Flawless (IF) diamond without magnification. As clarity grades increase beyond VS levels, price increases often become much larger than the visible improvement in appearance. This creates diminishing visual returns despite significantly higher costs. 

Why Flawless Lab Grown Diamonds Cost Significantly More

Flawless diamonds remain exceptionally rare, even in lab-created production.

Luxury branding and collector demand also contribute to pricing.

Smart Budget Allocation Strategies

Many diamond experts recommend prioritizing excellent cut quality, eye-clean clarity, balanced color, and appropriate carat size rather than focusing heavily on a single category. This balanced approach usually maximizes visible beauty and overall value for the budget spent. 

How To Choose the Right Clarity Grade?

Step 1: Prioritize Cut Quality Before Clarity

Cut quality usually affects sparkle and overall visual performance more than clarity. A well-cut diamond with slightly lower clarity often looks more attractive than a poorly cut diamond with a higher clarity grade.

Step 2: Match Clarity to the Lab Grown Diamond Shape

Different diamond shapes reveal inclusions differently. Emerald cuts, Asscher cuts, and large elongated shapes generally benefit from higher clarity grades because their open facets make imperfections easier to see. Brilliant cuts can usually tolerate lower clarity grades more effectively because sparkle helps conceal inclusions.

Step 3: Consider the Ring Setting

Ring settings can influence how visible inclusions appear. Halo settings and side stones often help disguise minor inclusions by creating additional sparkle and visual distraction around the center stone.

Step 4: Choose Clarity Based on Daily Wear

For everyday engagement rings, eye-clean clarity grades are usually more practical than ultra-rare collector grades. Many buyers prioritize durability, visual appearance, and value rather than microscopic perfection.

Step 5: Balance Clarity With Color and Carat Size

A balanced lab grown diamond often performs better visually than one optimized heavily in a single category. Buyers comparing clarity should also consider lab grown diamond color, carat size, cut quality, and certification standards before making a final decision.

Conclusion

A lab grown diamond clarity chart helps buyers understand how inclusions affect appearance, rarity, and pricing across different clarity grades. While flawless diamonds attract luxury attention, most engagement ring shoppers do not need ultra-high clarity to achieve beautiful visual performance.

For most buyers, VS1 and VS2 clarity provide the strongest balance of value, sparkle, and eye-clean appearance. Choosing the right clarity also depends on diamond shape, carat size, setting style, and personal expectations.

The smartest buying strategy balances cut, clarity, color, and budget together rather than overpaying for microscopic perfection. Buyers who understand these tradeoffs can confidently choose a lab grown diamond that delivers both beauty and long-term satisfaction.