Diamond Clarity: What It Is and Why It Matters

When shopping for a diamond—especially a lab-grown diamond—understanding clarity is key to making an informed, value-driven decision. While many buyers focus on the size or sparkle of a diamond, clarity plays a crucial role in determining how brilliant and beautiful your stone truly appears.

What Is Diamond Clarity?

Diamond clarity refers to the purity of a diamond, specifically how free it is from internal inclusions (natural formations within the stone) and external blemishes (surface-level markings). These tiny imperfections are a natural part of a diamond’s creation process—whether it’s grown in a lab or mined from the earth.

Clarity is graded by gemologists under 10x magnification. While most inclusions are invisible to the naked eye, they can influence a diamond’s:

• Brilliance: How much light the diamond reflects and refracts.
• Transparency: How clear or cloudy the diamond appears.
• Durability: In rare cases, large inclusions can impact the stone’s structure.
  

The Diamond Clarity Scale

The GIA clarity scale is the industry standard for grading diamonds. It ranks diamonds from Flawless (FL) to Included (I3). Here’s what each grade means:

• Flawless (FL): No inclusions or blemishes visible under 10x magnification. Extremely rare and highly prized.
• Internally Flawless (IF): No internal inclusions; only minor surface blemishes visible under magnification.
• Very Very Slightly Included (VVS1 & VVS2): Minute inclusions that are extremely difficult to detect under magnification.
• Very Slightly Included (VS1 & VS2): Minor inclusions that are somewhat easy to see under magnification but remain invisible to the naked eye.
• Slightly Included (SI1 & SI2): Noticeable inclusions under magnification; some may be visible to the naked eye, depending on the diamond.
• Included (I1, I2, I3): Obvious inclusions that are often visible to the naked eye, potentially affecting brilliance and durability.

Which Clarity Grade Should You Choose?

Clarity can significantly impact a diamond’s price—but not always its beauty. With the right guidance, you can find a stunning diamond that’s “eye clean” (free of visible imperfections to the naked eye) without overextending your budget.

Here are some tips:

• For top-tier perfection: Choose FL or IF grades, but be prepared for a premium price.
• For balanced value and beauty: VS1, VS2, and SI1 diamonds often appear flawless to the naked eye and offer the best value.
• For budget-friendly options: SI2 and even I1 diamonds can look beautiful, especially if inclusions are minimal or strategically placed.

Diamond Clarity Comparison Table

How Inclusions Are Evaluated

When grading clarity, gemologists consider several factors:

• Size: How large is the inclusion?
• Number: How many imperfections are present?
• Location: Are they near the center (more visible) or on the edges (easier to hide)?
• Nature: Are they internal (inclusions) or surface-level (blemishes)?
• Visibility: How noticeable are they under 10x magnification?

These details are documented in a diamond clarity diagram, included in a certified diamond grading report. This visual map shows the location and type of any imperfections.

Insider Tip: Ask About “Prong Inclusions”

Looking to maximize your budget? Ask for a diamond with prong inclusions—imperfections located near the edge of the stone. When the diamond is set into a ring, the prongs naturally hide these flaws.

Why it works:

• You get a lower-priced diamond with excellent visible quality.
• The inclusions are concealed in the final setting.

Our personal shoppers can help you find diamonds with prong inclusions that offer exceptional value.

How Shape and Size Impact Clarity

Not all diamonds display inclusions in the same way. The shape and carat size of a diamond play a big role in how visible imperfections are:

Shape Considerations

• Brilliant cuts (Round, Oval, Cushion, Marquise, Pear): These shapes have many facets that scatter light, making inclusions harder to spot. You can often choose a lower clarity grade.
• Step cuts (Emerald, Asscher): With large, open facets, these shapes highlight clarity. Opt for a higher clarity grade for these designs.

Size Considerations

• Larger diamonds: More surface area means inclusions are more noticeable. Choose higher clarity for high-carat stones.

Smaller diamonds: Naturally hide imperfections better, giving you more flexibility with clarity grades.

Common Types of Inclusions and Blemishes

Here are some terms you might see on a clarity diagram:

Inclusions (Internal Flaws)

• Cloud: A cluster of tiny crystals inside the diamond.
• Feather: A small internal crack or fracture.
• Crystal: A mineral deposit within the diamond.
• Needle: A long, thin crystal inclusion.
• Knot: An inclusion that reaches the surface.

Blemishes (Surface Flaws)

• Scratch: A fine line on the surface.
• Pit: A small hole or depression.
• Nick: A tiny chip on the edge or girdle.
• Polish line: A leftover line from the finishing process.

Frequently Asked Questions About Diamond Clarity

1. What is the best diamond clarity for engagement rings?

   The best clarity depends on your preferences and budget! If you want perfection, go for Flawless (FL) or Internally Flawless (IF). However, most people find VS1, VS2, or even SI1 diamonds to be stunning and more budget-friendly since they often appear flawless to the naked eye.
   
   

2. Are inclusions in lab-grown diamonds visible to the naked eye?

   Not always! Many lab-grown diamonds with grades like VS or SI1 are “eye clean,” meaning their inclusions are invisible without magnification. Our diamond experts can help you find the perfect stone with minimal visible imperfections.
   
   

3. How does diamond clarity affect price?

   Clarity significantly impacts price, especially at the higher end of the scale. Flawless (FL) diamonds are rare and command a premium, while diamonds with slight inclusions (SI1, SI2) offer exceptional value without compromising beauty.
   
   

4. Is diamond clarity more important than cut or carat?

   Not necessarily! While clarity is important, cut has the biggest impact on a diamond’s sparkle, and carat determines size. A well-cut diamond with a slightly lower clarity grade can still look breathtaking.
   
   

5. What are prong inclusions, and why are they a good option?

   Prong inclusions are imperfections near the diamond’s edge that are hidden by the prongs of a setting. Choosing a diamond with prong inclusions is a smart way to save money while still getting a gorgeous stone.
   
   

6. Do larger diamonds require higher clarity grades?

   Yes, larger diamonds have more surface area, making inclusions more noticeable. For stones over 1.5 carats, consider a clarity grade of VS2 or higher for the best visual appeal.
   
   

7. Do lab-grown diamonds have fewer inclusions than mined diamonds?

   Lab-grown diamonds often have fewer inclusions because they’re created in controlled environments. This means you can get a higher clarity grade for less compared to a mined diamond of the same quality.
   

Final Thoughts: Clarity Is About Strategy, Not Perfection

You don’t need a flawless diamond to own a breathtaking one. With lab-grown diamonds, you already enjoy better value and ethical peace of mind—so choosing the right clarity is all about finding balance.

By understanding how clarity affects beauty, brilliance, and budget, you’ll feel confident selecting a diamond that fits your style and priorities.

Still deciding? Our diamond experts are here to help! Book a one-on-one appointment for personalized advice, and let us guide you to the perfect clarity grade for your lab-grown diamond engagement ring or fine jewelry piece.

Still deciding? Our diamond experts are here to help.

Book a one-on-one appointment for personalized advice and let us guide you to the perfect clarity grade for your lab-grown diamond engagement ring or fine jewelry piece.