Best Diamond Clarity for an Engagement Ring: A Plain-English Guide

If you've just started shopping for diamonds, you've probably already heard about the 4Cs: cut, color, clarity, and carat. Of the four, clarity tends to cause the most confusion, mostly because the scale has eleven grades and it's not always clear which ones actually matter. 

Clarity refers to the presence of internal imperfections, called inclusions, and surface blemishes. If you want to brush up on all four factors first, Milano's diamond buying guide has you covered. This piece focuses on the best diamond clarity for an engagement ring and where the real value is.

The Diamond Clarity Scale at a Glance

Which Clarity Grade Gives You the Best Value?

For most buyers, the sweet spot on the clarity scale falls somewhere between VS2 and SI1. Both grades are routinely eye-clean (aka, show no imperfections to the naked eye) under normal viewing conditions, and both offer meaningful savings compared to the grades above them. As the scale and comparison images show, everything from FL down through VS1 looks virtually identical without a loupe, which means the price jumps in that range reflect rarity on paper more than anything you can actually see on the hand. Let’s look at the two most popular clarity grades for engagement ring shoppers: 

Grades Recommended for Engagement Rings: VS2 and SI1

VS2 is the most popular choice for good reason: 

• It's almost always eye-clean regardless of the shape or size of the stone
• It's backed by a full GIA or IGI grading report that tells you exactly what you're working with
• It leaves room in the budget for a better cut or a larger carat weight, both of which have a more visible impact on how the ring looks. 

For buyers who want a quality choice, VS2 is a reliable place to land.

SI1 is where the best value lives, particularly for round brilliant cut diamonds. When selected carefully and paired with a grading report that shows well-positioned inclusions, an SI1 can look identical to a VS2 on the finger. The caveat is that it takes a bit more due diligence. Inclusions near the edge of the stone or tucked under a prong matter far less than inclusions centered under the table (the flat facet at the top of the stone), so reviewing the specifics of the report before purchasing is worth the extra step.

Lower Grades

SI2 can work in certain cases, but it's harder to predict without seeing the actual stone or detailed images of it. For first-time buyers, VS2 or SI1 is the more manageable range to work within. At the other end of the scale, FL and IF grades are genuinely beautiful stones, but the premium they command is almost entirely about rarity. The difference between a flawless diamond and a VS2 is invisible in everyday wear, and that holds true even for people who know exactly what they're looking at. For buyers treating the purchase as a long-term investment or building an heirloom piece, VVS1 or VVS2 offers a higher level of purity that can carry additional value over time.

How Diamond Size and Shape Change the Equation

Clarity grade is a useful starting point, but two factors that don't show up in the grade itself can significantly change what you actually need before you buy: the size of the stone and the way it's cut.

It’s easier to see inclusions or flaws on larger diamonds because there's simply more facet area for them to appear in. A grade that reads as eye-clean at one carat can behave differently at two and a half, so moving up at least one clarity grade as you move up in carat weight is a smart, practical safeguard in that situation.

Cut style matters just as much: 

• Brilliant cuts, including round, oval, cushion, radiant, and pear shapes, use a complex arrangement of facets engineered to maximize light reflection and dispersion, which naturally conceals inclusions. 
• Princess cuts are a modified brilliant, but their distinct facet pattern is slightly less forgiving than a round brilliant, which is why they carry a higher minimum grade recommendation. 
• Step cuts, like emerald and Asscher, show inclusions most readily of all. Their broad, parallel facets act more like windows than mirrors, bringing inclusions considerably closer to the surface visually. For that reason, VS1 or better is the standard recommendation for step-cut diamonds, regardless of carat weight.

Find Your Diamond at Milano

For most engagement ring buyers, a carefully chosen VS2 or SI1 is the best diamond clarity grade. Both options will look stunning, wear beautifully, and leave room in the budget for the things that make the biggest visible difference. 

At Milano, every diamond comes with GIA or IGI certification, which means you can review the full grading report, see exactly where inclusions fall, and buy with certainty rather than relying on a grade number alone. Browse our certified lab-grown diamond collection, explore our natural diamond jewelry, or use our Ring Builder to design a custom engagement ring from the ground up.

Frequently Asked Questions

Do lab-grown diamonds have better clarity than natural diamonds? 

Generally, yes. Because lab-grown diamonds are created in controlled environments, they tend to form with fewer random inclusions than naturally mined diamonds. That often translates to higher clarity grades at a given price point, which means more value for buyers who prioritize a clean stone. 

Both lab-grown and natural diamonds are graded on the same GIA and IGI scale, so the grades carry the same meaning regardless of origin.

Does clarity matter as much for diamond necklaces and bracelets as it does for engagement rings? 

Not quite as much, and the reason is stone size and viewing distance. Smaller diamonds, like those in tennis bracelets or delicate necklaces, are typically viewed from farther away, which makes inclusions much harder to detect. 

For stones under half a carat, SI1 and even SI2 can work well without any visible compromise. For pendant necklaces with a larger center stone, the same general guidance that applies to engagement rings holds: VS2 or SI1 is a reliable range, with step-cut shapes warranting a higher minimum.

Does clarity matter more than cut? 

Cut has more impact on how a diamond looks than any other factor. A beautifully cut diamond with a moderate clarity grade will outperform a poorly cut flawless stone in almost any side-by-side comparison. If you're working within a set budget, prioritize cut first and let the clarity grade follow from what's left.