What are inclusions in diamonds?

Inclusions are natural internal characteristics that form within a diamond as it develops. They can look like tiny crystals, feathers, clouds, needles, or other small features under magnification. In most diamonds, inclusions are completely normal, and many are difficult or impossible to see without a jeweler’s loupe or microscope.

At Ganem Jewelers, we do not look at inclusions as a simple good-or-bad issue. What matters is where the inclusion is, how noticeable it is, whether it affects transparency or durability, and how the diamond looks once it is set and worn.

For clients in Scottsdale, Ahwatukee, and throughout the Phoenix area, that often means a diamond with a lower clarity grade can still be a very strong choice if the inclusions are well placed and visually unobtrusive.

Are All Inclusions Visible Without Magnification?

No.

Many inclusions are only visible at 10× magnification, which is the standard magnification used when diamonds are graded for clarity.

That is why two diamonds with different clarity grades can look almost identical to the naked eye.

If you are comparing diamonds in person, we usually suggest looking at them normally first. If you cannot see the inclusion without magnification, that may matter more to your decision than the grade by itself.

What We Notice First

When we look at a diamond, we pay attention to how quickly the inclusion draws your eye.

A small crystal near the edge may be much less noticeable than a similar inclusion in the center of the table. A faint feather tucked near a facet junction may disappear visually once the diamond starts returning light.

The location often matters as much as the type.

What Do Diamond Inclusions Actually Look Like?

Different inclusions can appear very different under magnification.

Some of the more common ones include:

The name alone does not tell you whether the diamond is a good or poor choice.

Two diamonds can both have feathers, for example, but one may have a small feather in a protected area while another has a larger one near an exposed edge.

That difference matters.

Can An Inclusion Make A Diamond Weaker?

Sometimes, but many inclusions have little practical effect on durability.

This is where the location and structure of the inclusion become important.

A small crystal deep inside the diamond is generally a different concern from a feather that reaches the surface near a thin girdle or exposed corner.

If you are considering a princess, pear, marquise, or another shape with points, we pay particularly close attention to inclusions near those vulnerable areas.

From The Jeweler’s Bench

An inclusion near a protected part of the diamond may be completely acceptable, while one near an exposed edge may change how we feel about the stone even if the clarity grade is similar.

Does A Lower Clarity Grade Mean The Diamond Will Look Worse?

Not necessarily.

Clarity grades describe the size, number, position, nature, and visibility of internal and external characteristics under controlled examination.

They do not measure beauty.

A diamond with a modest clarity grade can still look exceptionally bright and clean to the naked eye, especially if the inclusions are small, pale, or positioned away from the center.

This is why we often encourage clients to compare the actual stones instead of automatically paying more for a higher clarity grade.

What Does “Eye-Clean” Really Mean?

“Eye-clean” is an informal term used for a diamond whose inclusions are not easily visible without magnification under normal viewing conditions.

There is no single universal laboratory definition for it.

Your viewing distance, eyesight, lighting, diamond size, and inclusion placement all matter.

A one-carat diamond may appear completely clean to you, while a larger diamond with the same clarity grade may make an inclusion easier to see simply because there is more surface area to examine.

If eye-clean appearance is your goal, look at the individual diamond rather than relying on the clarity label alone.

Can A Prong Hide An Inclusion?

Sometimes, yes.

An inclusion near the edge of a diamond may be positioned beneath or near a prong, making it less noticeable once the stone is set.

But we would not use a prong simply to conceal something that creates a structural concern.

The inclusion still needs to be evaluated first.

If it is harmless and simply happens to sit in a visually convenient location, the setting can help make the diamond appear even cleaner.

That is a very different situation from using the setting to cover a problematic feature.

What If The Inclusion Is Right Under The Table?

That deserves a closer look.

The table is the large central facet on the top of the diamond, so inclusions in that area can be easier to notice than similar inclusions near the outer facets.

This does not automatically make the diamond undesirable.

A very small, light-colored crystal under the table may still be difficult to see without magnification. A dark inclusion in the same location may be much more obvious.

The Detail People Often Miss: Color Matters Too

When clients hear “inclusion,” they often think only about size.

But contrast matters.

A tiny dark crystal can sometimes attract more attention than a larger transparent inclusion because your eye notices the contrast against the bright diamond.

That is one reason we want to see the stone itself before deciding whether the inclusion is significant.

Can Inclusions Affect Sparkle?

They can, but only in certain situations.

Most small inclusions do not meaningfully interfere with a diamond’s brilliance.

However, heavy clouds, numerous inclusions, or characteristics that reduce transparency can make a diamond look hazier or less lively.

That is different from simply seeing one small inclusion.

When we evaluate a diamond, we look at whether light still moves through it cleanly and whether the stone appears bright and crisp.

A clarity grade is helpful. The actual light performance tells you more about how the diamond will look on your hand.

Should You Pay More For A Higher Clarity Grade?

Only if the difference matters to you.

If an SI1 diamond looks completely clean to your eye and has no durability concerns, moving to VS1 or VVS2 may improve the grading report more than it improves the appearance.

On the other hand, if you are choosing a large emerald-cut diamond with broad open facets, clarity may deserve more of your budget because inclusions can be easier to see.

The best clarity grade depends on the shape, size, setting, and your own sensitivity to inclusions.

Ganem Jewelers’ Perspective On Diamond Inclusions

At Ganem Jewelers, we do not try to eliminate every inclusion.

We try to understand which ones matter.

If an inclusion is hard to see without magnification, does not interrupt transparency or brilliance, and raises no concern for the intended setting, we may consider that diamond a very strong choice.

Accepting a harmless inclusion can sometimes allow you to put more of your budget toward a better cut, a preferred size, or the setting you really want.

The goal is not to find a diamond with nothing inside it. It is to find a diamond whose inclusions do not get in the way of its beauty or how you plan to wear it.

How Should You Compare Two Diamonds With Inclusions?

Start with your eyes before the loupe.

Look at each diamond face-up. Notice which one appears brighter, cleaner, and more appealing to you. Then use magnification to understand what you are seeing, not to search for a reason to reject the stone.

For clients in Scottsdale, Ahwatukee, and the greater Phoenix area, this side-by-side comparison is often where clarity becomes much easier to understand.

At Ganem Jewelers, we can help you look at the placement, type, and visibility of inclusions and decide whether they actually matter in the diamond you are considering.

That is usually a much better way to choose than chasing the highest clarity grade on paper.