Diamond Clarity Grades Compared: VVS to SI2
Clarity is where the industry sells microscope performance to people who own eyeballs. Here's every grade compared — and the only standard that actually matters: eye-clean.
Updated November 2026
Quick verdict
VS2 is the sweet spot; a hand-picked eye-clean SI1 is the value play. Clarity grades describe what a grader sees at 10x magnification. Your fiancée, her friends, and every stranger at every dinner party will view the ring at 0x magnification from a foot away. Once a stone is "eye-clean" — no flaws visible to the naked eye — every additional clarity grade is money spent on invisibility.
The head-to-head
| Grade | Under 10x magnification | To the naked eye | Relative price | Verdict |
|---|---|---|---|---|
| FL / IF | Nothing / surface-only marks | Flawless | $$$$$ | Collector territory |
| VVS1–VVS2 | Inclusions a grader struggles to find | Flawless | $$$$ | Lovely, largely symbolic |
| VS1 | Minor inclusions, findable with effort | Flawless | $$$ | Safe splurge-lite |
| VS2 | Minor inclusions, easier to find | Virtually always flawless Sweet spot | $$ | The smart default — buy with confidence |
| SI1 | Noticeable under the loupe | Usually flawless — verify on video Value | $ | Best value if hand-picked |
| SI2 | Obvious under the loupe | Coin flip — many show a visible spot | $ | Only with excellent video and a steady nerve |
| I1–I3 | Obvious | Visible flaws, can affect durability | Cheap | Pass |
"Eye-clean" is a per-stone question, not a grade
Two SI1 diamonds can look completely different. One hides a white feather under a prong; the other has a black carbon fleck sitting dead center under the table like a poppy seed in a tooth. Same grade, same price bracket, very different rings. This is why grade-shopping alone fails and why 360° HD video changed the game: you're not buying "an SI1," you're buying one specific rock. Watch the video at actual size (shrink the zoom to real-life scale), and if nothing jumps out, it's eye-clean regardless of the letters.
What to look for on the video / certificate plot
- Location: inclusions near the edge can hide under prongs — free clarity upgrade. Center-table inclusions are the ones to avoid.
- Color of the flaw: white feathers and clouds disappear into sparkle; black crystals are visible at twice the size.
- Clouds: a certificate reading "clarity grade based on clouds" on an SI stone can mean an overall hazy, milky look. Skip those.
Where the saved money goes
Dropping from VVS1 to an eye-clean VS2/SI1 routinely saves 20–40% on the stone. That difference funds a full extra size tier in carat, an upgrade to an Excellent cut, or the entire setting. Clarity is the C designed to be arbitraged — the whole game is knowing that certificates are graded under magnification and marriages are not.
Do inclusions weaken a diamond?
Not at VS/SI levels. Only large surface-reaching feathers in I-grade stones (especially at points and corners) raise durability flags — one more reason the floor is SI2.
Is clarity different for lab-grown?
The scale is identical. Lab stones are cheap enough that VS clarity costs little extra — a rare place to just buy the nicer grade. See lab vs natural.
Where we'd actually shop
The retailers worth your time for this decision:
James Allen
360° HD video of every single stone, so you can inspect the exact diamond — inclusions and all — before you buy.
Rare Carat
A price-comparison engine for diamonds — it pulls stones from dozens of vendors so you can see the whole market at once.
Blue Nile
Massive inventory of GIA-graded natural diamonds and frequent sitewide sales. The default place to start a search.
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