Understanding diamond clarity is key when choosing the perfect stone. Clarity measures internal flaws (inclusions) and external flaws (blemishes) in a diamond, graded on a scale from Flawless (FL) to Included (I3). Here’s what you need to know:
- FL to IF (Flawless to Internally Flawless): Perfect under 10x magnification; rare and expensive.
- VVS (Very Very Slightly Included): Tiny inclusions, hard to see even under magnification.
- VS (Very Slightly Included): Minor inclusions visible under magnification, great balance of quality and price.
- SI (Slightly Included): Inclusions may be visible but often "eye-clean" in SI1 grades.
- I (Included): Visible inclusions that can affect brilliance and durability. Budget-friendly option.
Pro Tip: Most buyers opt for "eye-clean" diamonds in the VS2-SI1 range for the best value. Always consider clarity alongside the other 4Cs (cut, color, carat) for a well-rounded choice.
Diamond Clarity Comparisons: Understanding SI1 vs VS2 VS1 VVS2 VVS1 IF FL
Detailed Guide to the Diamond Clarity Scale
Flawless (FL) and Internally Flawless (IF) Diamonds
Flawless (FL) diamonds are entirely free of inclusions and blemishes when viewed under 10x magnification. These gems are among the rarest and are highly sought after for their unmatched purity [1]. Internally Flawless (IF) diamonds, while also free of internal inclusions, may have slight surface blemishes visible under magnification [3].
| Grade | Key Characteristics | Common Uses |
|---|---|---|
| FL | No inclusions or blemishes | Museum collections, investments |
| IF | No internal inclusions, minor surface blemishes | Luxury jewelry, collectors’ pieces |
If you’re looking for near-perfect clarity but want a more affordable option, VVS diamonds are a great choice.
Very Very Slightly Included (VVS1, VVS2) Diamonds
VVS diamonds have inclusions so tiny they are challenging to spot even under 10x magnification. The main difference between VVS1 and VVS2 lies in the size and location of these inclusions [1]. Known for their exceptional brilliance and durability, VVS diamonds are a popular pick for high-end engagement rings [3].
Very Slightly Included (VS1, VS2) Diamonds
VS diamonds strike a great balance between quality and price. While inclusions are visible under magnification, they don’t affect the diamond’s sparkle or durability [1]. According to the GIA, VS diamonds deliver brilliance comparable to higher clarity grades but at a more accessible price point [3].
Slightly Included (SI1, SI2) Diamonds
SI diamonds are often a smart choice for buyers seeking value. Many SI1 diamonds appear "eye-clean" when set in jewelry, meaning inclusions aren’t noticeable without magnification. With a good cut and proper setting, these diamonds offer a mix of quality and affordability [5].
"Clarity characteristics can have positive effects, such as helping gemologists identify individual stones and providing scientists with information about diamond formation" [4].
For those open to more visible inclusions, the Included category offers budget-friendly options.
Included (I1, I2, I3) Diamonds
Included diamonds (I1, I2, I3) have visible inclusions that can impact their brilliance and durability. I1 diamonds may still appeal to budget-conscious buyers, while I2 and I3 grades are typically less suitable for fine jewelry [6].
| Clarity Grade | Inclusion Visibility | Effect on Value |
|---|---|---|
| I1 | Visible to the naked eye | Moderate price drop |
| I2 | Easily noticeable | Significant price drop |
| I3 | Highly visible inclusions | Major price drop |
These diamonds are sometimes used in designs where inclusions can be minimized through clever settings [6].
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What Affects Diamond Clarity Grades
Size and Number of Inclusions
A diamond’s clarity grade is influenced by the size, number, and position of its inclusions. Larger inclusions or those located directly under the table or near the pavilion are more noticeable and have a bigger impact on clarity. In contrast, smaller inclusions or those near the edges are harder to spot and affect clarity less [3]. Even small inclusions, if numerous, can collectively lower the clarity grade, despite seeming minor on their own [3].
Position and Contrast of Inclusions
The location of inclusions within a diamond plays a key role in how visible they are. Imperfections in the center, especially those reflecting light and appearing larger, reduce clarity more than those near the edges [3].
| Inclusion Position | Impact on Clarity | Visibility |
|---|---|---|
| Under Table | High Impact | Most visible |
| Near Pavilion | High Impact | Reflects light, increasing visibility |
| Near Girdle | Lower Impact | Hardly noticeable |
| Crown Area | Moderate Impact | Depends on size |
Inclusions with high contrast against the diamond’s bright background stand out more, leading to a lower clarity grade [3]. Buyers should carefully consider the size, position, and type of inclusions to find a diamond that offers a good mix of clarity and value.
Types of Inclusions
Different types of inclusions affect clarity and durability in various ways. For instance, crystals generally have a limited effect on durability, while feathers and cavities can weaken the diamond depending on their size and location [3][4].
| Inclusion Type | Impact on Clarity | Effect on Durability |
|---|---|---|
| Crystals | Moderate | Minimal impact |
| Feathers | Varies by size | May affect strength |
| Cavities | High | Can weaken structure |
The GIA carefully evaluates these factors when assigning clarity grades [4]. Experts suggest focusing on the diamond’s overall appearance rather than just its technical grade. For example, a diamond with strategically placed inclusions can look cleaner than one with a higher clarity grade but poorly placed imperfections [2].
Knowing these details can help you better understand clarity grades and choose a diamond that fits your preferences.
How to Choose the Right Clarity Grade
Finding Eye-Clean Diamonds
About half of SI1 diamonds look clean to the naked eye, making them a great option for value-conscious buyers [5]. However, clarity grades alone don’t tell the whole story. It’s essential to examine each diamond closely to judge the type and location of inclusions [1].
Once you’ve found diamonds that appear clean, the next step is to balance clarity with your budget.
Balancing Budget and Clarity
Clarity has a noticeable impact on a diamond’s price. For instance, moving from SI2 to VVS1 can increase the cost by 22%-28% [2]. Keep in mind, though, that clarity is just one aspect of a diamond’s overall appeal, along with cut, color, and carat weight.
| Clarity Grade | Price Impact |
|---|---|
| VS2-SI1 | Moderate premium |
| SI2 | More affordable |
| VS1-VVS2 | Higher premium |
If the clarity is SI2 or higher, it generally won’t affect the diamond’s sparkle or brilliance [5]. This means you can save money without sacrificing how the diamond looks.
Clarity Considerations for Different Jewelry
The type of jewelry influences the clarity grade you should choose. Different settings and viewing distances require specific considerations:
| Jewelry Type | Recommended Clarity | Why It Works |
|---|---|---|
| Engagement Rings | VS2-SI1 | Center stone is highly visible |
| Earrings | SI1-SI2 | Typically viewed from farther away |
| Pendant | VS2-SI1 | Seen from various angles |
| Side Stones | SI2-I1 | Smaller size hides inclusions well |
For engagement rings, look for diamonds with inclusions that can be hidden under prongs, which can help you get better value [1]. Earrings, on the other hand, can have slightly lower clarity grades since they’re viewed from a distance. Always factor in the setting and how the jewelry will be seen when making your choice.
Conclusion: Using the Clarity Scale to Buy Diamonds
Understanding the Clarity Scale
The clarity scale is an important guide for evaluating diamond quality, ranging from Flawless (FL) to Included (I3). But here’s the key: it’s not just about chasing the highest grade. What really matters is understanding how clarity impacts a diamond’s look and value [1][2].
For most buyers, "eye-clean" diamonds in the VS2-SI1 range strike the perfect balance between beauty and cost [5]. Knowing this can help you get the most value without overspending.
Tips for Smarter Diamond Buying
Keep these points in mind to make a confident purchase:
- Don’t Focus Solely on the Grade: A clarity grade doesn’t tell the whole story. Always inspect the diamond to see how any inclusions impact its appearance [5].
- Think About the Setting: The jewelry’s design plays a role. For example, SI2 or higher grades usually maintain sparkle, and the right setting can make inclusions less noticeable [5].
- Prioritize Overall Quality: Clarity is just one of the 4Cs. A well-cut diamond with slightly lower clarity often looks better and offers more value than a flawless but poorly cut one [4]. Work with a trusted jeweler to see the diamonds in person.
