When selecting a diamond, clarity is one of the most significant factors that influence its overall appearance and value. Two of the highest clarity grades available are FL (Flawless) and IF (Internally Flawless) diamonds. While both are exceptional, there are subtle differences between them that could impact your decision depending on what you value most in a diamond.

What Are FL (Flawless) Diamonds?

FL diamonds are the epitome of perfection in the world of diamonds. These stones are entirely devoid of any internal inclusions or external blemishes when viewed under 10x magnification by a trained gemologist. This level of clarity is incredibly rare, with only a minute percentage of all diamonds achieving this standard. The absence of any imperfections ensures that the diamond reflects light at its maximum potential, resulting in an extraordinary brilliance and fire.

However, the rarity of FL diamonds also means they come with a higher price tag. For those seeking a flawless gem, this grade is the ultimate choice, symbolising purity and absolute perfection.

What Are IF (Internally Flawless) Diamonds?

IF diamonds, while not entirely flawless, are incredibly close to perfection. These diamonds have no internal inclusions, but they may possess very minor external blemishes that are only visible to an expert under 10x magnification. These blemishes do not affect the diamond’s internal structure or its ability to reflect light, ensuring that IF diamonds still exhibit exceptional brilliance and beauty.

The primary advantage of IF diamonds is that they offer a near-perfect clarity at a more accessible price point compared to FL diamonds. This makes them an attractive option for those who desire a high-clarity diamond without the premium cost associated with FL diamonds.

Key Differences Between FL and IF Diamonds

While both FL and IF diamonds represent the pinnacle of clarity, the key difference lies in the presence of external blemishes in IF diamonds. FL diamonds are completely free of both internal and external imperfections, while IF diamonds may have very slight external blemishes. This difference, though minimal, can influence the diamond’s appearance under certain conditions, particularly when viewed under magnification.

Another distinction is the rarity and price. FL diamonds are significantly rarer than IF diamonds, which is reflected in their higher cost. This rarity and the absolute perfection of FL diamonds make them highly sought after by collectors and those seeking a truly unique piece of jewellery.

Making Your Choice: FL vs. IF Diamonds

The choice between FL and IF diamonds ultimately comes down to personal preference and budget. If you prioritise absolute perfection and are willing to invest in one of the rarest diamonds available, an FL diamond is the ideal choice. However, if you are looking for a diamond that offers exceptional clarity with a slight compromise on external perfection, an IF diamond provides a beautiful and more affordable alternative.

It’s important to consider how the diamond will be used. For an engagement ring that will be worn daily, an IF diamond may offer the best balance of beauty and value. On the other hand, for an investment piece or a diamond that symbolises absolute purity, an FL diamond may be worth the extra cost.

FAQs

What makes FL diamonds so rare?

FL diamonds are rare because they are completely free of any inclusions or blemishes, even under 10x magnification. The conditions required to create such a flawless diamond are incredibly specific, making FL diamonds extremely rare in nature.

Are IF diamonds visibly different from FL diamonds?

To the naked eye, IF diamonds appear virtually identical to FL diamonds. The only difference is that IF diamonds may have minor external blemishes that are only detectable under magnification by a skilled gemologist.

Is the price difference between FL and IF diamonds significant?

Yes, FL diamonds are generally more expensive than IF diamonds due to their rarity and the absolute perfection they represent. The price difference can be substantial, so it's important to consider your budget when making a decision.

Can the external blemishes in an IF diamond be seen without magnification?

No, the external blemishes in an IF diamond are typically so minor that they cannot be seen without magnification. These blemishes do not affect the diamond’s overall beauty or brilliance.

Which clarity grade is better for investment purposes?

FL diamonds are often considered a better investment due to their rarity and perfection. However, IF diamonds also hold significant value and may appreciate over time, especially if they are of a high carat weight and excellent cut.