Celebrity Endorsements of Lab-Grown Diamonds

Lab-grown diamonds have moved decisively into the mainstream — and celebrity endorsements have played a significant role in that shift. High-profile public figures choosing lab-grown diamonds for their engagement rings, red carpet appearances, and personal jewellery collections have helped normalise the category and signal its arrival as a genuinely premium choice.

Lady Gaga, Emma Watson, and Penelope Cruz have all been publicly associated with lab-grown or ethically sourced diamonds. Several celebrities have partnered with lab-grown diamond brands, citing both ethical motivations — avoiding conflict diamonds and reducing environmental impact — and the practical advantage of accessing larger, higher-quality stones for the same price point. When high-profile figures make choices that align values with aesthetics, those choices tend to cascade into wider consumer behaviour.

In Australia, the celebrity endorsement effect has been amplified by social media visibility. Engagement ring announcements from public figures frequently trigger spikes in search interest for the specific shapes and settings shown. The oval lab-grown diamond solitaire in yellow gold — one of the dominant celebrity choices of recent years — has directly influenced the most requested style at Australian jewellers.

Why More Couples Are Choosing Lab-Grown Diamonds

Lab-grown diamond engagement rings have moved from a niche alternative to a mainstream choice in a remarkably short time. In Australia and internationally, a growing proportion of engagement ring buyers are choosing lab-grown — and the reasons are varied, practical, and worth understanding.

The value shift

The most straightforward reason is financial. Lab-grown diamonds cost significantly less than mined equivalents — typically 40–60% less for a comparable stone. For couples facing a property market that requires substantial deposits, and living costs that have risen sharply, that saving is meaningful. It can mean a more impressive ring, or money redirected toward a deposit, a honeymoon, or simply a less stressful start.

The ethical position

For many buyers, the environmental and ethical profile of lab-grown diamonds matters independently of the cost. The diamond mining industry has faced persistent scrutiny over land use, water use, carbon emissions, and in some regions, labour practices. Lab-grown diamonds sidestep those concerns entirely — they require no excavation, no displacement, no complex supply chain across multiple high-risk geographies.

This isn't a peripheral concern for a growing cohort of buyers. For couples who think carefully about the environmental and social impact of their spending, lab-grown is simply the consistent choice.

The quality reality

Earlier generations of lab-grown diamonds had quality issues that gave some buyers pause. That's no longer the case. Modern CVD and HPHT production consistently produces diamonds graded at the same standards as the finest mined stones. IGI-certified lab-grown diamonds are graded on cut, colour, clarity and carat — and a top-graded lab-grown stone is, by every measurable standard, an exceptional diamond.

The design freedom

When the diamond costs less, the setting can be more considered. Buyers who choose lab-grown often find they can afford the metal they actually want — platinum rather than white gold, for example — or a more intricate setting style, or a larger stone. The diamond becomes the beginning of the decision rather than the ceiling on it.

What changes and what doesn't

A lab-grown diamond is a real diamond. It looks the same, wears the same, and lasts the same. What changes is how it was made and what it cost to produce. For most couples, those are very good changes.

If you're considering a lab-grown diamond engagement ring, explore our lab-grown solitaire rings or read our full guide to lab-grown diamonds before you decide.

Further reading

• Customisation trends in lab-grown diamond rings
• Lab-grown vs mined diamonds: the full cost comparison
• Why lab-grown diamonds are better for the environment

Explore Una Diamond Engagement Rings

Every Una Diamond ring is handcrafted to order in solid 18K gold or platinum, set with an IGI-certified lab-grown diamond, and delivered in around six weeks:

• The Georgina — oval-cut solitaire
• The Celina — east-west emerald cut
• The Nova — toi et moi with pear and emerald
• Solitaire rings — timeless, celebrity-approved
• Oval cut rings — the elongating statement
• Marquise rings — rare and distinctive
• Browse all ready-to-ship rings →