Choosing the best lab diamond clarity for value is not simply about selecting the highest clarity grade available. In most cases, paying for flawless or internally flawless clarity does not provide a visible improvement that justifies the extra cost. The better approach is to find a certified lab grown diamond that looks clean to the eye while balancing clarity with carat, colour, cut and price.
For many buyers, VS2 is an excellent starting point for value, while selected VS1 and eye clean SI1 diamonds can also offer strong value depending on the diamond's shape, size and inclusions. The right choice depends on whether the inclusions can actually be seen and whether they affect the diamond's beauty or durability.
When comparing loose lab diamonds, we recommend looking beyond the clarity label and assessing the individual stone. A well cut VS2 can look more attractive than a higher clarity diamond with weaker proportions or less appealing visual performance.
(Related: Best Lab Diamond Shapes for Value)
What Does Lab Diamond Clarity Mean?
Clarity describes the presence, size, position and visibility of inclusions inside a diamond and blemishes on its surface. These characteristics are evaluated under controlled conditions, typically using 10x magnification.
Lab grown diamonds are real diamonds with the same fundamental crystal structure and optical properties as natural diamonds. Their clarity is graded using the same general clarity scale used for diamonds mined from the earth.
The standard clarity scale ranges from:
- Flawless (FL): No inclusions or blemishes visible under 10x magnification.
- Internally Flawless (IF): No internal inclusions visible under 10x magnification, although surface blemishes may be present.
- Very, Very Slightly Included (VVS1 and VVS2): Extremely difficult inclusions to identify under 10x magnification.
- Very Slightly Included (VS1 and VS2): Minor inclusions that are generally more difficult to see under magnification.
- Slightly Included (SI1 and SI2): Noticeable inclusions under 10x magnification, with visibility varying considerably between individual diamonds.
- Included (I1, I2 and I3): Inclusions that are usually easier to see and may affect transparency, brilliance or durability.
The important point for value focused buyers is that clarity grades describe what is observed under magnification. They do not automatically tell us how clean a diamond will look to the naked eye.
What Is the Best Lab Diamond Clarity for Value?
For most buyers, VS2 offers one of the strongest combinations of visual cleanliness and price.
A good VS2 can appear completely clean when viewed without magnification, meaning that upgrading to VS1, VVS2 or VVS1 may provide little or no visible benefit.
However, we should not treat VS2 as a universal rule. Clarity depends heavily on the individual diamond.
A practical value hierarchy is:
| Clarity | Value Potential | What We Generally Expect |
|---|---|---|
| FL | Low | Exceptional rarity and very high clarity premium |
| IF | Low | Extremely clean, but often unnecessary visually |
| VVS1 | Low to Moderate | Very high clarity with limited visible benefit |
| VVS2 | Moderate | Excellent clarity, but may cost more than needed |
| VS1 | High | Very clean appearance with strong value |
| VS2 | Very High | Often an excellent balance of price and appearance |
| SI1 | Potentially Very High | Can offer excellent value when genuinely eye clean |
| SI2 | Variable | Individual inspection becomes particularly important |
| I1 and below | Variable to Low | Inclusions may affect appearance or durability |
This table is a starting point rather than a strict buying formula. A beautiful SI1 may be a better purchase than an unattractive VVS2 if the SI1 is eye clean and the higher clarity stone has other compromises.
Why VS2 Is Often the Best Value Choice
VS2 sits in an attractive part of the clarity scale for buyers who want a clean looking diamond without paying heavily for microscopic perfection.
At this grade, inclusions are usually minor enough that they are difficult to identify without magnification. In a well selected stone, they may have no meaningful impact on its appearance when viewed normally.
This makes VS2 particularly useful when the budget could otherwise be spent on characteristics that have a more obvious visual impact.
For example, rather than automatically upgrading from VS2 to VVS2, a buyer could potentially use the difference in price toward:
- A larger carat weight
- Better colour
- A stronger cut
- A preferred diamond shape
- A more attractive set of proportions
For a round brilliant diamond, cut quality can have a particularly noticeable effect on brightness, fire and scintillation. A higher clarity grade cannot compensate for a poorly performing cut.
Is VS1 Better Than VS2?
Technically, VS1 is the higher clarity grade. From a value perspective, however, that does not necessarily make it the better purchase.
The difference between VS1 and VS2 can be extremely difficult to see without magnification. If both diamonds appear equally clean to the naked eye and have comparable cut quality, colour, proportions and certification, the VS2 may provide better value if it costs significantly less.
VS1 can still be an excellent choice when the price difference is small or when the individual diamond has particularly attractive characteristics.
The key is to compare the actual stones rather than assuming that the higher grade automatically represents better value.
Can SI1 Be the Best Clarity for Value?
Yes. A carefully selected eye clean SI1 can sometimes provide exceptional value.
This is where clarity buying becomes more interesting. The SI1 category includes diamonds with a wide range of inclusion types, sizes and positions. One SI1 may appear clean from normal viewing distance, while another may have an obvious dark inclusion in the centre of the stone.
When considering an SI1 diamond, we recommend paying particular attention to:
Inclusion Position
An inclusion close to the edge may be less noticeable than one positioned directly under the table, the large central facet area of many brilliant cut diamonds.
Inclusion Colour
Dark inclusions can be easier to notice than light or transparent inclusions.
Inclusion Type
Different inclusions have different visual and structural implications. A small cloud may be less distracting than a prominent crystal or dark feather, depending on its location and size.
Diamond Size
As carat weight increases, inclusions may become easier to notice simply because the diamond's visible surface area is larger.
Shape
The faceting pattern of the diamond affects how easily inclusions can be seen. Step cut diamonds such as emerald and Asscher shapes often have larger, more open facets, making clarity particularly important.
Clarity Requirements by Diamond Shape
The best lab diamond clarity for value can change depending on the shape you choose.
Round Brilliant
Round diamonds are generally forgiving when it comes to clarity because their brilliant faceting can help disguise small inclusions.
A clean VS2 can therefore be a strong value choice, while some eye clean SI1 diamonds may also deserve consideration.
Oval
Ovals can offer strong value at VS2 or VS1. However, inspect the centre of the diamond carefully because inclusions in prominent areas can become visible depending on their type and contrast.
Cushion
Cushion diamonds vary considerably in facet pattern. Some have brilliant faceting that disguises inclusions effectively, while others have larger facets where clarity characteristics can be easier to identify.
VS2 is often a sensible starting point.
Emerald Cut
Emerald cuts require more attention to clarity because their step cut creates broad, open facets. Inclusions can sometimes be easier to see.
For this reason, VS1 or VS2 may be preferable when the goal is a consistently clean appearance.
Asscher Cut
Like emerald cuts, Asscher diamonds have large step facets. We would generally place greater emphasis on finding an eye clean stone rather than simply choosing the lowest possible clarity grade.
Pear, Marquise and Radiant
These shapes can offer good opportunities to save money on clarity when the individual diamond is clean to the eye. VS2 can be an excellent starting point, with carefully selected SI1 stones worth considering.
(Related: Best Two Carat Lab Grown Diamonds)
Should You Buy VVS Clarity?
VVS clarity can be attractive to buyers who want exceptionally clean diamonds under magnification. However, it is rarely necessary solely to achieve an eye clean appearance.
If two diamonds look equally clean without magnification, paying considerably more for the VVS stone may not make sense from a value perspective.
This does not mean VVS diamonds are poor purchases. It means that the additional clarity can represent diminishing returns for buyers whose primary goal is visible beauty and overall value.
A buyer with a larger budget and a preference for very high clarity may reasonably choose VVS. A value focused buyer can often allocate that money more effectively elsewhere.
What About Flawless and Internally Flawless Lab Diamonds?
FL and IF diamonds sit at the top of the clarity scale, making them appealing from a rarity and perfection standpoint.
However, the absence of inclusions under 10x magnification does not make an FL or IF diamond automatically brighter or more beautiful than a well cut VS2.
Clarity is only one part of a diamond's overall appearance.
For someone primarily interested in visual performance and value, moving from VS2 to IF may produce a substantial increase in price without an equivalent visible improvement.
For collectors or buyers who specifically value top clarity grades, FL and IF can still be appropriate. The important thing is to understand what the premium is buying.
How to Choose the Best Clarity Without Overspending
Rather than selecting a clarity grade first, we recommend using a structured comparison process.
1. Set Your Budget
Start with the total amount you are comfortable spending. This establishes the trade offs you can make between carat, colour, clarity and cut.
2. Choose Your Shape
The diamond's shape affects how forgiving it is of inclusions. Decide whether you prefer a round, oval, cushion, emerald, radiant, pear, marquise or another shape before narrowing the clarity range.
3. Prioritise Cut and Visual Performance
For shapes where cut grading and proportions can be assessed effectively, look carefully at cut quality and the diamond's overall light performance.
A higher clarity grade cannot fix poor proportions.
4. Start Around VS2
Use VS2 as a useful benchmark when comparing prices. Then examine whether VS1, SI1 or VVS2 offers a meaningful advantage for the particular stones you are considering.
5. Inspect the Actual Diamond
Do not rely entirely on the clarity grade printed on a certificate.
Two diamonds with the same VS2 grade can look very different. Review available photographs, videos and grading information where possible.
6. Check the Certification
A reputable grading report gives you an independent description of the diamond's characteristics. Compare certified stones on clarity, colour, carat weight, cut and proportions rather than relying solely on seller descriptions.
Best Clarity by Buying Goal
Different buyers can reasonably choose different clarity grades.
Best overall value: VS2
Best balance of clarity and value: VS1 or VS2
Best potential budget saving: Eye clean SI1
Best for step cut diamonds: VS1 or VS2, depending on the individual stone
Best for buyers prioritising very high clarity: VVS2 or higher
Best for maximum clarity: IF or FL
These are guidelines, not fixed rules. The actual diamond should always determine the final decision.
Clarity vs Colour: Where Should You Spend More?
One of the most common mistakes is paying heavily for clarity while overlooking colour.
Once a diamond is eye clean, moving to a significantly higher clarity grade may have little visible benefit. Colour can sometimes be more noticeable, particularly in larger diamonds and certain shapes.
This creates an important value opportunity.
A buyer might prefer a well cut VS2 diamond with an attractive colour grade over a VVS2 diamond with a similar carat weight but a less desirable colour.
The correct balance depends on the setting, shape, metal colour and personal preference.
Clarity vs Carat: Should You Buy a Larger Diamond?
For many value focused buyers, reducing clarity from VVS2 to VS2 can free up part of the budget for additional carat weight.
The important condition is that the lower clarity diamond remains visually clean and structurally sound.
For example, if a VS2 and VVS2 look virtually identical to the naked eye, choosing the VS2 may allow you to consider a larger diamond without compromising the appearance you actually see.
This is one reason clarity should be evaluated as part of the entire specification rather than in isolation.
How to Compare Two Lab Diamonds for Value
When two diamonds appear similar, compare them systematically.
Look at:
- Carat weight
- Shape
- Colour grade
- Clarity grade
- Cut quality
- Length-to-width ratio
- Proportions
- Symmetry
- Polish
- Fluorescence where relevant
- Certification
- Inclusion location and type
- Actual asking price
Then ask a simple question: Can we see a meaningful difference between the two diamonds without magnification?
If the answer is no, the lower priced option may provide stronger value.
Our lab diamond clarity guide can also help explain how clarity grades differ and what to look for when comparing individual stones.
The Best Lab Diamond Clarity Is the One You Cannot See
The most useful way to think about clarity is not to chase the highest grade. It is to identify the lowest clarity grade that still gives you the appearance, confidence and quality you want.
For many diamonds, that point is around VS2. For particularly well selected stones, SI1 can provide even greater savings when it is genuinely eye clean. On the other hand, emerald and Asscher cuts may justify moving higher because their open step faceting can make inclusions easier to notice.
Ultimately, the best lab diamond clarity for value is the grade that gives you a clean, attractive diamond without paying for microscopic perfection you cannot see. By comparing certified stones individually and considering clarity alongside cut, colour, carat and price, we can make a more informed decision and spend the budget where it has the greatest visible impact.