"Eye clean" is one of those phrases that sounds like industry jargon but is actually pretty simple. A stone is eye clean if you can hold it up about ten inches from your face — normal looking distance, normal lighting — and you can't spot any inclusions. That's it. No magnifier. No loupe. Just your eyes.

I bring this up because clarity grading on diamonds and other gems can scare people. They look at a grade like SI1 or SI2 and assume the stone is going to look flawed. Most of the time, it won't.

Clarity grades vs. what you actually see

Clarity grades are made under 10x magnification. Ten times. That's a microscope, basically. So when a lab calls a diamond SI1, what they're saying is: under a loupe, a trained gemologist could spot something. Whether you, sitting in your kitchen looking at your own hand, can see it — that's a different question.

Here's the thing. I've sold plenty of SI1 diamonds that are completely eye clean. I've also seen VS2 stones with an inclusion right under the table that catches the light wrong and bothers the wearer every single day. Grade is one input. It is not the whole story.

What I actually look for

When a client picks a stone with me in the studio, I'm checking three things. Where the inclusion sits. What kind it is. And whether it's the type of thing that interferes with the light.

Position matters more than people realize. An inclusion right under the center of the stone — what we call the table — is going to be visible. The same exact inclusion tucked near the girdle, hidden under a prong, basically disappears. So a smart cutter or jeweler will hide flaws on purpose.

Type matters too. A small white feather is different from a black carbon spot. A cluster of pinpoints on the side reads as nothing. A black mark dead center reads like a problem. Two stones with identical clarity grades can look very different in person.

Why I push people toward eye clean instead of higher grades

If you're choosing between two diamonds — say, a one carat VS2 at $7,000 and a one carat SI1 at $5,500, both eye clean from a foot away — buy the SI1. You're paying a $1,500 premium for a difference no one can see. Not your fiancé, not your friends, not the person next to you in line at the coffee shop. Not even you, unless you carry a loupe in your purse.

This is one of the biggest places people overspend. They think they need to chase a higher grade because the certificate says so. The certificate is a useful tool. It's not a wearer's manual.

The exceptions: certain stones bend the rules

Emeralds are almost never eye clean. They almost always have what gemologists call a jardin — a "garden" of inclusions inside. Trying to find an eye clean emerald means either spending six figures or being misled. With emeralds, character is the point.

Salt and pepper diamonds are the same. They're celebrated for their inclusions. So when I ask a client if they want eye clean, I always ask what they're going for first. Sometimes the inclusions are the reason you love the stone.

And step cuts — emerald cuts, baguettes, asschers — are less forgiving than brilliant cuts. The wide flat planes act like windows. Anything inside is on display. So with a step cut, eye clean is more important. With a round brilliant, the facets do a lot of work to hide things.

What to ask when you're shopping

Don't ask "what's the clarity grade?" Ask "is this stone eye clean?" Then have the jeweler point out where the inclusions are and tell you whether they're white or dark. Ask to see the stone face up under normal lighting. Not under the spotlight at the case, which is engineered to make every diamond look perfect.

If you can, see the stone in three lights: the jeweler's display lamp, regular indoor lighting, and outdoor daylight. Stones look different in each. The one that holds up across all three is the one to buy.

Got a stone you're considering — yours, mine, or one a different jeweler is showing you? Reach out. I'm always happy to give a second opinion.