I’ll be honest — the first time I wandered into a jewellery store “just to look around,” I felt completely out of my depth. The sparkly world of diamonds is beautiful, sure, but the terminology can hit you like a tonne of bricks. Carat, colour, cut, fluorescence… and of course, the diamond clarity chart.
Back then, I had no idea how much those tiny natural markings inside a stone could affect its appearance, its price, and even how it catches the light on a sunny day. Over the years, especially as I started writing more about fashion and lifestyle for Australian audiences, I’ve learnt that clarity is actually one of the most fascinating parts of diamond shopping. It’s a blend of science, artistry, and personal preference — and once you get the hang of the diamond clarity chart, you’ll feel so much more confident making a choice that genuinely reflects your style.
Well, today I’m unpacking everything I’ve learnt, from the simple basics to the little insider tips jewellers don’t always explain unless you know what to ask. Consider this an honest, human, lived-in guide — the sort you’d get over a coffee with someone who’s been down this road before.
Table of Contents
What the Diamond Clarity Chart Really Means
You might not know this, but clarity isn’t actually about perfection; it’s about visibility. All diamonds form under heat and pressure, so most develop tiny “birthmarks” called inclusions (inside the stone) or blemishes (on the surface). The diamond clarity chart grades how easy those marks are to see under magnification — and sometimes, whether they’re visible at all to the naked eye.
The standard clarity scale goes something like this:
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Flawless (FL)
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Internally Flawless (IF)
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Very Very Slightly Included (VVS1 & VVS2)
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Very Slightly Included (VS1 & VS2)
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Slightly Included (SI1 & SI2)
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Included (I1, I2, I3)
If you’re seeing that list for the first time, it may feel a bit intimidating. Trust me — after a while, it becomes second nature. Flawless and Internally Flawless stones are stunning, but they’re also rare and priced accordingly. On the other hand, many VS and SI diamonds look perfectly clean to the eye and cost significantly less.
One thing I wish someone had told me early on is this: clarity is often the most forgiving of the 4Cs. A well-cut stone with a slightly lower clarity grade can still look brilliant, especially if its inclusions aren’t visible without magnification.
If you want a clear, jargon-free reference, the diamond clarity chart from jewellers like Novita Diamonds offers a handy visual breakdown. Here’s one I personally find useful: diamond clarity chart.
How Clarity Affects the Look of a Diamond (Beyond the Scale)
A funny thing happens once you start comparing stones side by side — clarity begins to feel less like a technical metric and more like a personality trait.
Some inclusions are so faint they blend into the sparkle. Others sit close to the edge where the setting will hide them anyway. And occasionally, you’ll find a diamond with a single, distinctive mark that feels almost like its signature.
I remember meeting a jeweller in Melbourne who told me that inclusions make diamonds “human.” I laughed at the time, but honestly, there’s something lovely about embracing the natural quirks that come from how the stone formed millions (or billions!) of years ago.
That said, clarity still influences the brilliance you see with your own eyes. Here’s how:
1. Sparkle and Light Performance
A diamond with heavy inclusions — especially I2 or I3 — can look cloudy or dull. Light struggles to travel cleanly through the stone, so you’ll get less fire and scintillation.
2. Durability
Certain inclusions, like feathers or internal cracks, can affect the structure of the stone. Jewelers usually avoid recommending poorly placed inclusions for rings that are worn daily.
3. Aesthetic Cleanliness
Some people simply prefer the peace of mind that comes with knowing their diamond is eye-clean. Others genuinely don’t mind inclusions as long as the stone sparkles beautifully.
This is why learning how to read and understand the diamond clarity chart gives you an edge. You’re not only choosing a grade — you’re choosing a look.
How Lab Grown Diamonds Changed the Clarity Conversation
You’ve probably noticed lab grown diamonds popping up everywhere lately. Not long ago, they felt like an alternative option; now they’ve become a mainstream choice for many couples and collectors. And there’s a good reason for that.
Lab grown diamonds have the same physical, chemical, and optical properties as mined diamonds — they’re just formed in a controlled environment rather than deep underground. The interesting part (and the reason they matter when talking about the diamond clarity chart) is that lab grown stones often have fewer inclusions.
Because the creation process is stabilised, inclusions form more predictably. Sometimes they look slightly different — metallic inclusions from the growth chamber, for instance — but many are so tiny they’re microscopic.
For many Australians, especially younger buyers who care about ethics and value, lab grown diamonds offer a chance to “trade up” to higher clarity at a more accessible price. I’ve seen people who thought they could only afford an SI1 mined diamond suddenly discover they can get a VVS2 lab grown diamond for the same budget. That’s a pretty empowering revelation when you’re choosing something as meaningful as an engagement ring.
If you’re curious to explore that world a little more, this piece is a helpful read: lab grown diamonds.
And yes — because I know someone will wonder — the diamond clarity chart applies to both mined and lab grown diamonds. The scale doesn’t change; only the typical distribution of clarity grades does.
Using the Diamond Clarity Chart to Choose the Right Stone for You
After talking to countless jewellers, brides, grooms, and diamond buyers over the years, I’ve found that clarity is deeply personal. Some people light up when they see a crystal-clear VVS diamond. Others get the same thrill from knowing they chose a smart, eye-clean SI diamond that freed up budget for a bigger carat or a superior cut.
Here’s what I usually tell readers when they ask for guidance:
1. Decide whether “eye-clean” matters to you.
If you want a diamond that looks flawless to the naked eye, focus on VS2 or above. Some SI1 stones are also eye-clean — it depends on the individual diamond.
2. Look at the inclusions, not just the grade.
Two diamonds with the same clarity grade can look completely different. Always view the actual stone (or high-resolution images) when you can.
3. Consider how the setting will impact visibility.
Halo settings, bezel settings, and thicker prongs can mask small inclusions around the edges.
4. Don’t overspend on invisible clarity.
FL and IF diamonds are incredible, but you’ll pay a premium for perfection you may never see without a loupe.
5. Lab grown diamonds offer clarity upgrades without blowing the budget.
If clarity is your priority, lab grown stones genuinely give you more freedom.
And above all — trust your eyes. The diamond clarity chart is a guide, but your personal taste matters more.
Why Australians Are Paying More Attention to Clarity Than Ever
Living in Australia, we have access to a huge range of both mined and lab grown diamond options, and our jewellery culture has evolved rapidly. People are becoming more informed, more intentional, and more expressive in their diamond choices.
From what I’ve seen, there are three big reasons clarity is becoming a focal point here:
- Social media magnification — Close-up ring photos make inclusions far more noticeable than they are in real life, so buyers want reassurance.
- Ethical awareness — As lab grown diamonds grow in popularity, shoppers compare clarity grades more actively across both types.
- Value-conscious spending — Australians want to maximise beauty without overspending, which means learning how to navigate the diamond clarity chart smartly.
It’s actually really refreshing to see how many people — especially women buying jewellery for themselves — are becoming clarity-savvy. There’s something empowering about understanding what you’re buying and why.
Final Thoughts: Clarity Is About Confidence, Not Perfection
When I think back to that first bewildered trip into a diamond store, I almost laugh. If someone had pulled me aside and quietly explained the diamond clarity chart in plain English, the whole experience would’ve felt far more enjoyable.
So here’s what I hope you take away: clarity doesn’t have to be confusing. Once you grasp the basics and trust your personal taste, choosing a diamond becomes fun — expressive, even. Whether you’re drawn to the natural narrative of a mined stone or the modern appeal of lab grown diamonds, clarity is simply another part of the story.