VS1 Diamond Clarity Explained, With 2 to 5 Carat Examples

GIA's clarity scale runs FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, I1, I2, I3. VS1 is the fifth grade, the first one below the two VVS grades. It is defined by minor inclusions that a skilled grader can see at 10x magnification with some effort.

Think of the scale in three bands. Above VS1 you pay for rarity under the microscope. Below VS2 you start to need a stone-by-stone check. VS1 sits at the top of the band where the grade is invisible on the hand and the price is still sensible. Every one of the 84 rings in our house inventory is graded VS1 clarity with E color.

Clarity pricing climbs in steps, and the steps get steeper near the top. VS1 sits right before the climb into VVS. You get a stone that is clean to the eye from every normal angle, including in most step cuts, without paying for features you need a microscope to confirm.

There is also a safety margin built in. VS2 is usually eye-clean in brilliant shapes, but "usually" is the key word, especially as stones get larger. VS1 removes most of that doubt. For a buyer who wants to choose a ring on looks and not spend an afternoon with a loupe, VS1 is the grade where the decision gets easy. That logic is why the house inventory carries VS1 across all 84 rings, from a $960 round to an $8,900 emerald.

Under the loupe, typical VS1 inclusions are things like:

• Pinpoints: tiny crystals that look like specks of dust.
• Small feathers: short, thin internal breaks that look like a whisker.
• Needles: fine, thin crystals.
• Light clouds: groups of pinpoints that, at VS1, are too faint to haze the stone.
• Growth features in lab-grown stones: small dark specks or faint graining from the growing process.

The grader weighs size, number, position, relief and nature. A pinpoint near the edge, hidden by a prong, grades better than the same pinpoint under the table. That is why two VS1 stones can differ slightly, and why both still look clean on the hand.

Position matters as much as type. On a VS1 report the plot often shows marks near the girdle or under a prong, where they are naturally hidden. If the plot shows a single feather right under the table, the stone may still be VS1, but it is the weaker of the possible VS1 stones. When you have a choice between two VS1 diamonds, pick the one whose inclusions sit near the edge.

Shape is where VS1 really earns its place. Brilliant cuts (round, oval, pear, radiant, cushion, marquise, heart) have many small facets that scatter light and hide small inclusions. Step cuts (emerald, asscher) have long, flat facets that act like windows. An inclusion that disappears in a round can show in an emerald cut of the same grade.

Shape	Is VS1 eye-clean	Is VS2 eye-clean	House example (E / VS1)
Round	Yes	Almost always	Round Lab Diamond Ring 2.25 ct, 14K White Gold, $3,900
Pear	Yes	Almost always	Pear Lab Diamond Ring 4.49 ct, 14K Yellow Gold, $2,800
Radiant	Yes	Almost always	Radiant Lab Diamond Ring 7.98 ct, 14K Yellow Gold, $4,400
Emerald	Yes, in most stones	Check each stone	Emerald Lab Diamond Ring 4.98 ct, 14K Yellow Gold, $3,500

This is the trade's working rule, not a GIA statement. If you love emerald cuts, VS1 is the grade most experienced buyers treat as the floor.

The neighbors on each side are the real comparison.

	VVS2	VS1	VS2
Inclusions at 10x	Very difficult to find	Found with some effort	Found a little more easily
Naked eye, brilliant cuts	Clean	Clean	Clean in nearly all
Naked eye, step cuts	Clean	Clean in most	Sometimes visible
Who picks it	Buyers who want a higher grade on paper	Buyers who want certainty without the VVS premium	Budget buyers choosing brilliant shapes

GIA's own comparison says VVS and VS stones usually look the same to the unaided eye. So VS1 over VVS2 is mostly a saving. VS1 over VS2 is mostly insurance: a little more money for a stone you will not need to inspect as closely, especially at large sizes. Our VS1 vs VS2 comparison goes deeper on that choice.

Clarity matters more as stones get bigger, because larger facets show more of the interior. A tiny SI inclusion in a half-carat stone can become noticeable in a four-carat stone. That is why VS1 is a common target for larger center stones, and why the house rings in the 2 to 5 carat range are all VS1.

Ring	Center stone	Total weight	Price
Oval Lab Diamond Ring 2.47 ct, 14K White Gold	2.10 ct	2.47 ct	$3,600
Radiant Lab Diamond Ring 3.55 ct, 14K Yellow Gold	3.01 ct	3.55 ct	$2,200
Pear Lab Diamond Ring 5.68 ct, 14K Yellow Gold	4.01 ct	5.68 ct	$4,500
Emerald Lab Diamond Ring 4.88 ct, 14K White Gold	4.19 ct	4.88 ct	$6,800

All four are lab-grown, E color, VS1 clarity. At these sizes VS1 keeps a big stone looking clean from every angle while the lab-grown origin keeps the price within reach. The wider selection is in E color VS1 diamond rings and the full ring collection.

A VS1 grade means the same thing on a lab-grown or a natural diamond: minor inclusions, found with effort at 10x. What changes is the price for the same look. The house inventory has both origins at E color and VS1 clarity, so the comparison is direct.

Ring	Origin	Total weight	Price
Round Lab Diamond Ring 4.15 ct, 14K Yellow Gold	Lab-grown	4.15 ct	$2,700
Round Natural Diamond Ring 4.25 ct, 14K Yellow Gold	Natural	4.25 ct	$6,000
Emerald Lab Diamond Ring 4.88 ct, 14K White Gold	Lab-grown	4.88 ct	$6,800
Emerald Natural Diamond Ring 4.54 ct, 14K White Gold	Natural	4.54 ct	$8,900

Same clarity, same color, similar weight. The natural pieces cost more because of origin, not because their VS1 is better. Choose origin first, then let VS1 do its job.

On an IGI report for a lab-grown diamond, clarity appears as a line item ("Clarity Grade: VS1") next to color, cut, polish and symmetry. Many reports include a plotted diagram: red marks for internal inclusions, green for surface features, with a key underneath ("pinpoint", "feather", "crystal"). Check that the plot shows small, scattered marks rather than one large feather near the center.

GIA reports for natural stones work the same way. For lab-grown stones graded after 1 October 2025, GIA no longer prints VS1 or other clarity grades; it issues a quality assessment with broader descriptions instead. If you see a VS1 grade on a recent lab-grown report, it most likely comes from IGI or another lab. See the full clarity chart, compare VS1 with the grades above it in what are VVS diamonds, and get the bigger picture in the 4Cs guide.

A quick checklist when a VS1 stone comes with a report: the report number matches the online record; the carat weight and measurements match the stone to the hundredth; the plot shows small marks rather than one large one; and the comments section does not mention clouds "not shown" that might haze the stone. Four checks, two minutes, full confidence.

VS1 is a great default, but not a universal one.

• Tight budget, round stone: VS2 or a carefully chosen SI1 can look identical in a round brilliant and free up money for size.
• Very large step cut: above about 5 carats in an emerald or asscher, some buyers move up to VVS2 for complete peace of mind.
• Collector's natural stone: when rarity is the point, higher clarity is part of what you are buying.
• Pavé and iced pieces: clarity grades on tiny stones are rarely individual; focus on even color and secure settings instead.

For everything else, from a first engagement ring to a statement cocktail ring, VS1 gives the clean look with the least overspend.

1. Look at the stone face up, about 8 to 10 inches away, under normal room light. You should see nothing.
2. Tilt it slowly. Some inclusions catch light only at an angle; at VS1 they should still not stand out.
3. Look through the side. In step cuts, inclusions near the corners can show from the side even when the top looks clean.
4. Use a 10x loupe if you want. You may find a pinpoint or two. That is what VS1 means.
5. Compare two stones side by side. Brightness and cut differences will jump out long before clarity does.

You can do exactly this with the house rings at our Miami showroom; directions are on the visit page.