Top 10 Celebrity Lab-grown Diamond Rings You Need to Know
There's something about celebrity engagement rings that stops people mid-scroll. Maybe it's the size, the cut, or just the story behind it. Whatever it is, these rings have a way of quietly reshaping what the rest of us start searching for, dreaming about, and eventually buying. And lately, a growing number of stars are choosing lab-grown diamonds because of the same brilliance as natural diamonds, bigger stones, and a choice they can actually feel good about.
Why Are Celebrities Choosing lab-grown Diamonds?
It's not just a trend. Celebrities have real influence over sustainability conversations, and jewelry has become part of that. A lab-grown diamond carries the same chemical structure and optical sparkle as a mined stone, but the difference is in sourcing, and that matters to people who live their values publicly.
Here, size is another major factor. Many celebrity engagement rings feature center stones that would traditionally land in the territory of expensive wedding rings - the kind most people can only admire from a distance. And to speak the truth, lab-grown diamonds help to change that equation as you get the scale without the compromise on quality.
Design freedom opens up, too. Whether you're drawn to the effortless glamour of Blake Lively’s engagement ring, the timeless elegance of Lily Collins’ engagement ring, or the sheer drama of Beyonce's wedding ring, lab-grown diamonds make that level of craftsmanship more achievable. The focus shifts from rarity to beauty, proportion, and what the ring actually means.
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Top 10 Celebrity lab-grown Diamond Rings
Oval and cushion cut engagement rings are at the forefront of the celeb trend in lab-grown diamonds due to their ability to create a bigger appearance than the classic round cut diamond. Ring styles include simple white gold solitaires and vintage-inspired yellow gold halo styles, but what they all have in common is that they are both eye-catching and elegant to wear.
1. Meghan Markle
Prince Harry designed a three-stone ring for Meghan, centered around a cushion-cut diamond weighing approximately 3 carats sourced from Botswana. It’s a country with deep personal significance for the couple, where they spent time early in their relationship. The two round brilliant side stones originally belonged to Princess Diana's personal collection, and the original band was yellow gold, chosen at Meghan's request for its warm tone. In 2019, the band was upgraded to a diamond pavé setting in white gold or platinum.
Though her center stone is mined, Meghan is a known advocate for lab-grown diamonds and has worn lab-grown earrings and other jewelry pieces on multiple public occasions. Rings inspired by this iconic three-stone design are now widely available in lab-grown diamonds, delivering the same elegance at a significantly more accessible price.
2. Bindi Irwin
Chandler Powell chose a 2.01-carat lab-grown diamond set in recycled rose gold, with a twisted vine-inspired band scattered with diamonds. This is a design that Bindi described as capturing her vintage sensibilities and love of nature. This celebrity ring has an oval cut center stone, creating a flattering, elongated silhouette while maximizing brilliance. Every detail reflects Bindi's conservationist values, making this one of the most personally meaningful lab-grown diamond rings in celebrity history.
Read More: Bindi Irwin’s Engagement Ring – Everything We Know
3. Nikki Reed
Nikki Reed's engagement ring was an unconventional choice as it was a round diamond at the center surrounded by 10 smaller diamonds arranged in the shape of a flower, creating a romantic floral halo design. It was made with 18-karat gold recycled from technology, accented with cultivated diamonds grown in California and ethically mined sapphires. Nikki later founded her own sustainable jewelry brand, Bayou with Love, directly inspired by this ring, making it a turning point in celebrity lab-grown jewellery conversations.
4. Emma Watson
At the 2018 Academy Awards Vanity Fair afterparty, Emma Watson wore earrings made from lab-grown diamonds and recycled gold, alongside a recycled gold sapphire cuff and a responsibly sourced bracelet and ring. Her eye-catching diamond "friendship" ring features a vintage-inspired petal design with 22 diamond petals, representing each of her 22 closest friends as a collective gift celebrating a personal milestone in her life. The friendship ring features a natural, yellow diamond at the center encircled by a halo of 22 tapered, smaller baguette lab-grown diamonds in a ballerina-style setting.
Beyond individual pieces, Emma Watson, famed for her role as Hermione Granger in Harry Potter, has been one of the most consistent and vocal celebrity supporters for sustainable fashion as a whole. She is publicly endorsing lab-grown diamonds as part of her broader commitment to ethical luxury. Her jewelry choices consistently favor clean lines, minimal settings, and stones that let quality do the talking. As a long-standing sustainability advocate, her cumulative influence on the lab-grown diamond market is less about one iconic piece and more about the steady weight of always choosing thoughtfully, which, in many ways, is the most powerful statement of all.
Read More: How to Shop the Emma Watson Engagement Ring From Lab-Grown Diamonds
5. Leonardo DiCaprio
Few people have done more for the lab-grown diamond movement from behind the scenes than Leonardo DiCaprio. His journey began with the 2006 film Blood Diamond, a raw, unflinching look at the human and environmental cost of diamond mining in Sierra Leone that clearly left a lasting mark. DiCaprio's influence has been instrumental in bringing lab-grown diamonds from niche to mainstream, proving that real luxury and real responsibility can exist in the same ring. In 2015, the Oscar-winning actor invested in a company based in San Francisco that creates lab-grown diamonds using solar energy.
6. Blake Lively
Blake Lively's engagement ring features a 12-carat oval-cut center stone set in a thin rose gold pavé band, and importantly, the impact it had on jewelry trends is hard to overstate. Created by Lorraine Schwartz, the ring is estimated to cost nearly $2 million. Although it is crafted with a mined stone, the ring’s soft blush tone and elongated oval shape have led to the surge in the popularity of lab-grown, more sustainable alternatives that replicate the same look at a far lesser price.
The Gossip Girl actress is widely regarded as the first high-profile celebrity to wear a rose gold engagement ring, setting a massive bridal trend in motion. Her engagement ring remains one of the most searched and replicated styles in the lab-grown diamond space, where achieving that oval-on-rose-gold look is significantly more accessible.
7. Lily Collins
Custom-crafted by renowned jeweler Irene Neuwirth, Lily Collins’ engagement ring centers on a square rose-cut diamond estimated between 3 and 4 carats, set in a warm yellow gold bezel band. The bezel setting allows the diamond to appear as if it's floating, with no visible base behind the stone, creating an ethereal, almost translucent effect. In 2025, fans even spotted a dazzling new sparkler, probably a 5-carat emerald-cut diamond set east-to-west in a sleek mixed metal bezel.
Lily Collins’ engagement ring, in both its original and upgraded form, has become a reference point for anyone who wants something genuinely distinctive. The best part is both the rose-cut and emerald-cut styles translate beautifully into lab-grown diamonds, offering the same ethereal quality with far more sustainable sourcing.
8. Penélope Cruz
Rather than wearing lab-grown diamonds as a personal engagement ring, Penélope Cruz went a step further. She designed a fine jewelry collection built entirely around them. With the collection debuting at the Cannes red carpet in 2018, Cruz wore matching earrings and a ring in white 18-karat fair trade gold set with lab-grown diamonds and rubies. The collection also showcased 3-carat pear-cut lab-grown diamonds - the largest lab-grown diamonds ever to appear on the Cannes red carpet at the time.
Read More: Penélope Cruz’s Engagement Ring: Lab-Grown Diamond Style
9. Simone Biles
Jonathan Owens worked closely with Houston-based jeweler ZoFrost over several months to design Simone's engagement ring, personally handpicking the center stone. The ring features a 3-carat oval-cut diamond set on a diamond pavé band. Owens requested a specific finishing touch, a halo of smaller diamonds surrounding the oval center stone, adding an extra layer of sparkle to an already striking design.
Also, Simone Biles’ wedding ring, a diamond-encrusted band designed to match her husband's, completed the set. Together, they represent one of the most admired and widely searched celebrity ring combinations of recent years. Both pieces are achievable in lab-grown diamonds, which offer the same oval-cut brilliance and pavé sparkle at a considerably lower price point.
10. Rihanna
For her 30th birthday, Rihanna wore a striking ring combining rubies, pink sapphires, and 16 lab-grown diamonds set in an 18-carat yellow and white vermeil setting. Rather than a conventional engagement-style ring, this piece was pure Rihanna - bold, layered, and built to stand alone. It proved that lab-grown diamonds don't need to live in traditional settings to look extraordinary, and quietly influenced a generation of buyers who want personality and edge in their fine jewelry.
In turn, all of these trends influence what consumers choose to buy and love. The popularity of Kaitlan Collins’ engagement ring is no exception either; people are interested not only in how pretty her ring is but also in what it stands for. And yes, searches for Hunger Games inspired Katniss designer rings still come up, proving that even fictional rings leave a lasting impression on real-world trends.
Where to Buy lab-grown Diamond Rings Like Celebrities?
What makes most celebrity rings stand out isn't just the carat weight - it's the proportion. At CaratBee, every design is made with that approach in mind. Whether you want the drama of a bold center stone or the simplicity of a clean solitaire, the craftsmanship stays consistent. Halo settings bring the glamour, three-stone designs carry symbolism, and solitaires keep the look refined. The right choice is simply the one that feels most like you.
Celebrity rings can be a great starting point for inspiration but the ring you wear every day should reflect your story, not just someone else's red carpet moment. Explore our meticulously crafted engagement and wedding rings, where each piece features IGI-certified stones, intricate designs, and profound meaning.
