How Lab Grown Diamonds Are Changing Luxury Jewellery
The woman wearing it wasn’t a celebrity — she was a lawyer from Brisbane — but the way that necklace caught the light, you’d think she’d just stepped off a red carpet. There was something timeless about it. Elegant without trying too hard. Understated, yet impossible to ignore.
That was years ago, before I ever heard the phrase lab grown diamond. Back then, the assumption was that real sparkle meant real mines. Anything else was seen as “fake.” But fast forward to now — and the story has completely changed.
In 2025, the quiet revolution in fine jewellery isn’t about minimalism or metals. It’s about ethics, technology, and transparency. And nowhere is that shift more visible than in the rise of lab grown diamond tennis necklaces.
A New Kind of Luxury: Conscious, Not Compromised
Here’s the thing: Australians have become far more conscious consumers than we were a decade ago. Whether it’s what we eat, wear, or invest in, we’re asking tougher questions. Where did this come from? Who made it? What’s the impact?
The jewellery world, once built on mystique and scarcity, has had to adapt. Traditional mining has long been linked with environmental damage, questionable labour practices, and carbon-heavy processes. For a generation that values sustainability and honesty, that doesn’t quite align with the idea of “forever.”
That’s where lab grown diamonds come in — and, more specifically, lab grown diamond tennis necklaces. These pieces combine the same breathtaking beauty of natural diamonds with a story you can actually feel good about wearing.
In simple terms, lab grown diamonds are created using advanced technology that replicates the natural conditions under which diamonds form. The result? Chemically, physically, and optically identical to mined diamonds — but without the environmental guilt.
The Tennis Necklace: A Classic That’s Come Full Circle
The term “tennis necklace” actually traces back to the 1987 U.S. Open, when professional tennis player Chris Evert famously stopped mid-match after her diamond bracelet snapped and the stones scattered across the court. That iconic moment gave birth to the “tennis bracelet” — and the necklace version soon followed.
The beauty of a tennis necklace lies in its simplicity: a seamless row of sparkling stones that hug the neckline. It’s refined, balanced, and effortlessly wearable, whether you’re heading to a black-tie dinner or brunch by the beach.
But for years, that classic glamour came at a cost — both financial and ethical. A traditional diamond tennis necklace could set you back tens of thousands (sometimes hundreds of thousands) of dollars, depending on carat weight and clarity. That put the dream of owning one firmly out of reach for most people.
Now? The story’s changing.
Thanks to lab grown diamond tennis necklaces, what was once an unattainable luxury is suddenly within reach. The quality is breathtaking, but the price point is refreshingly modern — often 40–70% less than mined equivalents.
I spoke to a Melbourne jeweller recently who told me, “It’s funny — people come in expecting lab grown diamonds to look different somehow. Then they see them under the loupe, and they’re shocked. You can’t tell them apart.”
Why Everyone’s Talking About Man Made Diamonds
Let’s be honest — for a long time, “man made” didn’t exactly sound luxurious. It conjured images of something cheap or synthetic. But that’s where the narrative has shifted dramatically.
Today’s man made diamonds aren’t imitations. They’re real diamonds, grown in advanced labs using cutting-edge technology like CVD (Chemical Vapour Deposition) or HPHT (High Pressure High Temperature).
Both methods recreate the same environment found deep within the earth’s mantle, where natural diamonds are born. The only difference? Instead of taking millions of years and heavy mining machinery, these diamonds are created in a controlled environment in just a few weeks — powered increasingly by renewable energy.
And here’s the kicker: even professional gemologists often need specialised equipment to distinguish lab grown from mined diamonds. They’re that identical.
The shift in perception has been incredible. High-end jewellers — the ones who once swore they’d never touch a lab grown gem — are now embracing them. Not out of necessity, but out of principle. Because sustainability isn’t a trend anymore. It’s the standard.
The Personal Touch: Why I Fell for Lab Grown Diamonds
When I first started researching lab grown diamonds for an article, I wasn’t expecting to fall down such a fascinating rabbit hole. I spoke to scientists, jewellers, and consumers — from couples designing their engagement rings to stylists dressing TV presenters.
One woman, a sustainability consultant from Perth, told me she’d saved for years to buy a diamond necklace. But the idea of supporting mining operations didn’t sit right with her. “When I found out about lab grown diamonds,” she said, “it felt like a weight lifted. I could finally have something beautiful without compromising my values.”
That line stuck with me — beauty without compromise.
I ended up trying one myself: a classic four-prong tennis necklace with one-carat lab grown stones, each perfectly matched. It was stunning. But what I noticed most wasn’t the sparkle (though that was spectacular) — it was the feeling. There’s a quiet confidence that comes from wearing something that aligns with your ethics.
Style Meets Substance: How to Wear a Lab Grown Diamond Tennis Necklace
A tennis necklace isn’t just jewellery — it’s a style statement. The key to pulling it off, though, is all about balance.
For daytime, I like to pair mine with a crisp white shirt, gold hoops, and messy hair. Effortless, but still polished. For evenings, I’ll layer it with a dainty choker or pendant for contrast. And if you’re heading to something formal, there’s nothing quite like the clean line of diamonds against bare skin and a minimalist dress.
One of the things that surprised me most was how versatile it is. A tennis necklace doesn’t scream for attention; it whispers. It adds just enough brilliance to make you feel put together — even if you’re in jeans.
Lab grown diamond versions also open up new creative possibilities. Because they’re more affordable, you can experiment with carat sizes, mixed metals, or even coloured lab grown diamonds (like pale pink or champagne tones).
Investment or Indulgence?
There’s been plenty of debate in the jewellery world about whether lab grown diamonds hold their value like mined ones. The short answer? They don’t — at least, not in the traditional sense.
But here’s the thing: most people buying fine jewellery today aren’t doing it to resell. They’re buying for meaning, sentiment, and wearability.
And when you consider that you can own a high-quality, ethically made, and visually flawless necklace at a fraction of the cost — that’s its own kind of investment.
In fact, many jewellers argue that lab grown diamond tennis necklaces represent the future of smart luxury. It’s not about flaunting status; it’s about celebrating innovation, sustainability, and conscious style.
The Bigger Picture: Redefining What “Luxury” Means
For decades, luxury was defined by rarity — by how difficult something was to get. But that’s shifting. True modern luxury is about craftsmanship, transparency, and integrity.
It’s about feeling connected to what you wear — understanding the story behind it.
When I think about lab grown diamond tennis necklaces, I don’t just see sparkle. I see a movement that’s democratising beauty. It’s allowing more people to experience fine jewellery without compromising the planet or their principles.
And honestly, that feels more luxurious than any brand name ever could.
The Takeaway
The next time you see a diamond tennis necklace — whether on a celebrity at an awards show or your friend at brunch — there’s a good chance it didn’t come from deep underground. It may have come from a lab instead, sparkling just as bright, with a much lighter footprint.
That, to me, is the beauty of this new era of jewellery. It’s thoughtful. It’s accessible. And it’s proof that sustainability doesn’t mean sacrifice.
So if you’ve ever dreamed of owning a diamond tennis necklace but hesitated because of the price or ethics, it might be time to look again. The sparkle’s the same — the story’s just better.
And who knows? Years from now, when people talk about jewellery trends that changed everything, they might just mention this one: the moment the world discovered that the most brilliant diamonds weren’t found — they were made.
