Best Lab-Grown Tennis Necklace Styles: Elegant & Ethical Choices

Not all diamond jewelry tells the same story—and when it comes to tennis necklaces, the narrative has shifted. Once the hallmark of high society and exclusivity, the tennis necklace is undergoing a modern transformation—not in form, but in philosophy. And this is unmistakably the era of lab-grown diamonds.

Interested in knowing the Real Difference Between a Natural and Lab Diamond Tennis Necklace? Check Out Here!

Today's buyers are more seeking significance, meaning jewelry that aligns with both aesthetic and ethical values.

Karaters' lab-grown diamond tennis necklaces do the same — redefine the radiance and craftsmanship. These pieces are essential to jewelry collections designed for those who understand that elegance and responsibility are no longer mutually exclusive.

In this guide, we’ll explore the best lab-grown tennis necklace styles exclusively available at Karaters and that are truly timeless. Let's have a look!

🔴 Trigger Warning: By the end of this post, you might just find yourself adding one (or two) to your cart! 💎 

1. Classic Round-Cut Lab-Grown Diamond Tennis Necklace

Image/Karaters

Best For: Weddings, formal events, milestone gifts

A necklace like this doesn’t come around often, simple in shape, but bold in beauty. The Classic Round-Cut Lab-Grown Diamond Tennis Necklace brings sparkle, depth, and thoughtful style together. It shines with clean lines and perfect balance. It looks just right at a fancy gala or is given as a gift to keep forever.

Why Choose a Round-Cut Lab Made Diamond Tennis Necklace?

• Perfect symmetry: Round-cut diamonds offer unmatched light performance and maximum sparkle.
• Eco-conscious brilliance: Made with lab-grown diamonds that are chemically and optically identical to mined diamonds, without the ethical baggage. 
• Versatile lengths: Typically available in 16" to 18", resting beautifully along the collarbone.
• Metal options: Choose from white, yellow, or rose gold settings to match your style.
• Secure settings: 3-prong or 4-prong designs ensure durability without compromising dazzle.

You can wear it alone or pair it with your favorite delicate chains. It fits in with any outfit, casual or dressy; this isn’t only jewelry, it shows your luxury taste. If you're picking one piece to wear for big moments, this one says everything without a word.

What's Trending at Karaters

• Round Cut Lab-Grown Diamond Tennis Necklace 4-Prong
  
• 3 Prong Round Shape Lab Grown Diamond Tennis Necklace 
  
• Illusion Set Round Shape Lab Grown Diamond Tennis Necklace Solid Gold
  

2. Graduated Tennis Necklace - Modern Twist on the Classic

Image/Karaters

Ideal For: Brides, anniversary gifts, or anyone looking to make a subtle statement.

The Graduated Lab-Grown Diamond Tennis Necklace redefines subtle drama with a sophisticated edge. Unlike the uniformity of traditional tennis necklaces, this piece plays with proportions; larger diamonds sit front and center, gradually tapering to smaller ones toward the clasp. The result? A flattering contour that highlights your neckline and commands attention without shouting for it. Available in solid 14K or 18K gold, white, yellow, or rose, to match your unique aesthetic.

What Makes a Graduated Tennis Necklace Unique?

• Eye-catching balance: The graduated layout adds dimension and movement, perfect for turning heads without overpowering your outfit.
• Flattering silhouette: The tapering design draws attention to the center, elongating the neckline beautifully.
• Versatile styling: Equally suited for red carpet glamour or upscale dinner dates.
• Multiple diamond cuts: Often crafted with round or oval lab-grown diamonds for a luxurious, flowing effect.
• Secure 3-prong and 4-prong settings: Keep your stones in place while maximizing their sparkle.

This necklace is for the fashion-forward woman who appreciates classic beauty, with a twist. If you want your jewelry to speak elegance with a whisper of edge, this is your perfect match.

Karaters' Handpicked Favorites

• 4 Prong Graduated Lab Grown Diamond Tennis Necklace 18K Solid Gold
• Riviera Graduated Style Lab-Grown Diamond Tennis Necklace 18K Solid Gold
  

3. Bezel-Set Tennis Necklace - Minimalist & Secure

Image/Karaters

Best For: Everyday wear or those with active lifestyles

The Bezel-Set Lab-Grown Diamond Tennis Necklace is where clean lines meet practical design, ideal for those who love understated luxury without compromising on security.

Each lab-grown diamond is fully encased in a smooth metal rim, offering not only a modern, minimalist aesthetic but also superior protection. This piece is sleek, refined, and durable enough to wear daily, whether you're heading to a meeting or on the move.

What's So Stunning about Bezel-Set Tennis Necklace?

• Minimalist chic: The bezel setting offers a smooth, continuous look that feels refined and contemporary.
• Enhanced protection: Encasing each diamond in a gold frame protects the edges, making it perfect for active lifestyles or frequent wear.
• Smooth, snag-free design: Ideal for layering or pairing with delicate fabrics; no prongs to catch on clothing.
• Sustainable sparkle: Features lab-grown diamonds that deliver the brilliance of mined stones, without the ethical footprint.
• Customizable lengths and gold tones: Available in white, yellow, or rose gold and in various lengths to suit your style.

This is the ultimate "wear-it-everywhere" necklace. Whether you're dressing up a blouse or adding polish to your athleisure, the bezel-set tennis necklace is a quiet show of confidence and conscious elegance.

Top Picks at Karaters

• Round Shape Bezel Set Lab Grown Diamond Tennis Necklace 18K Solid Gold
  
• Round Shape Bezel Set Lab Grown Diamond Tennis Necklace 14K Solid Gold
  

4. East-West Set Tennis Necklace – Contemporary & Artistic 

Image/Karaters

Best For: Trendsetters and fashion lovers

The East-West Set Lab-Grown Diamond Tennis Necklace breaks away from traditional jewelry norms by literally turning the classic vertical diamond setting on its side. Instead of the usual up-and-down placement, these diamonds lie horizontally, creating a fresh and unexpected visual rhythm that instantly elevates any look.

East-West necklace style appeals to fashion-forward customers who crave a piece that stands out with subtle yet striking artistry. Designed for comfort and durability, these necklaces lie flat against the skin and avoid catching on clothing.

Why East-West Set Tennis Necklace is a Good Pick

• Shapes that pop: This style often features elongated cuts like emerald, baguette, or marquise diamonds, maximizing the impact of the sideways orientation.
• Size variety: From delicate, petite stones perfect for everyday elegance to larger gems that bring dramatic flair, there’s flexibility depending on your statement preference.
• Color and metal options: Choose from classic white or yellow gold, or rose gold for a trendy twist, each complementing the sharp geometry of the setting.

For those who want jewelry that doubles as wearable art, the east-west tennis necklace offers an edgy, modern spin without sacrificing sophistication. It’s the perfect conversation starter for anyone seeking to express individuality through elegant design.

Explore Karaters' Stunning Pieces

• East to West Oval Cut Lab Grown Diamond Tennis Necklace 18K Solid Gold
  
• East to West Oval Cut Lab Grown Diamond Tennis Necklace 14K Solid Gold
  

5. Mixed Shape Tennis Necklace

Image/Karaters

Best For: Statement jewelry collectors

The Mixed Shape Lab-Grown Diamond Tennis Necklace is a bold celebration of artistry and individuality, designed for those who see jewelry as more than just an accessory. By alternating diamond shapes, such as round, pear, and emerald-cut, this necklace creates a dynamic play of light and form that adds depth and personality to any outfit.

Why Choose a Multi-shaped Lab Diamond Tennis Necklace?

The mix of cuts gives the piece a high-fashion edge, perfect for trendsetters who want their jewelry to reflect creativity and confidence. Unlike traditional uniform designs, the varying shapes offer a visually interesting rhythm, making it an ideal choice for those who appreciate statement pieces that spark conversation.

Crafted with the same ethical and sustainable standards as other lab-grown diamond jewelry, this necklace blends luxury with conscious choices.

The mixed shape tennis necklace is a versatile expression of style and sophistication, perfect for wearing alone or layered with simpler chains. 

6. Colored Lab-Grown Gem Tennis Necklace - Vibrant & Playful

Image/Karaters

Best For: Personal expression or seasonal trends

The Colored Lab-Grown Gem Tennis Necklace offers a fresh and lively take on classic tennis necklaces by incorporating vibrant gemstones.

• The deep, rich hue of blue sapphires adds a calming yet striking elegance to any look.
• Radiant lab-grown red rubies introduce passionate warmth, making a bold statement without overwhelming.
• Lush green emeralds offer a fresh, vibrant touch, evoking nature’s beauty with every movement.

Color always brings a fresh vibe to jewelry. These lab-grown stones come in fun shades that lift your look and add sparkle that never fails to impress. They shine just like traditional diamonds, clear, bright, and full of sparkle. Try them with your favorite outfit or use them to match the season’s mood; this necklace plays along either way.

The carefully crafted settings showcase each gemstone beautifully, balancing color intensity with brilliance. Whether you’re dressing up for a special occasion or elevating your casual style, this necklace is a versatile piece that celebrates elegance and individuality. With ethical sourcing and sustainable production, it’s a joyful way to express yourself while making a conscious choice

Karaters' Top Picks for Lab-Made Gem Tennis Necklaces

• Single Stone Red Ruby Lab-Grown Diamond Tennis Necklace 14K Solid Gold
  
• Blue Sapphire Lab-Grown Diamond Tennis Necklace 14K Solid Gold
  

7. Emerald-Cut Tennis Necklace

Perfect Match: Pair with emerald-cut studs or a matching bracelet for a refined set.

Some jewelry speaks softly but leaves a lasting impression, and that’s exactly what the emerald-cut tennis necklace does. With its clean lines and mirror-like shine, this piece doesn’t scream for attention. It simply holds it.

The emerald cut is known for its understated beauty, offering less sparkle but more glow. The diamonds in this necklace reflect light in wide flashes rather than tiny bursts, giving it a refined, confident presence. It’s the kind of necklace that feels just as natural paired with a silk blouse as it does with an evening gown.

Why the Emerald-Cut Lab-Diamond Tennis Necklace is a Must-Have

• The step-cut design gives it a sleek, almost architectural feel—perfect for minimalists who love bold shapes.
• It's made with lab-grown diamonds that are identical to mined ones in every way, except without the environmental or ethical cost.
• Available in versatile lengths, from collarbone-grazing to longer, draped styles.
• Comes in your choice of white, yellow, or rose gold—so it fits your personal tone.

This tennis necklace is a style statement for those who lead with quiet confidence. Elegant but never overdone, bold but never flashy. If you want something that feels powerful in its simplicity, this one might just be your forever piece.

Popular Choices at Karaters

• Emerald Cut Lab-Grown Diamond Tennis Necklace
  
• 14K Gold Classic Lab-Grown Diamond Tennis Necklace With Emerald Cut Center Stone
• 18K Gold Classic Lab-Grown Diamond Tennis Necklace With Emerald Cut Center Stone

Beyond the popular styles mentioned, tennis necklaces also come in stackable, layered, oval, floating, different shapes, and choker designs.

How to Choose the Right Tennis Necklace for You

Here is what to consider when finding your perfect tennis necklace that matches your personal style:

I. Choose the Right Length

Tennis necklaces typically range from 16 inches (sitting just at the collarbone) to 20 inches or longer. Shorter lengths are perfect for layering or formal wear, creating a more refined, elegant look. Longer lengths are ideal for statement styling, draping gracefully, and offer a bit more drama. So, think about how and when you’ll wear it: do you want something that flatters a neckline daily, or a standout piece for evening occasions?

II. Setting Style That Matches Your Lifestyle

The setting defines the necklace’s personality and durability, and how the light reflects through it:

• Prong settings let in the most light for maximum sparkle.
• Bezel settings offer a sleek, modern look with extra protection.
• Channel settings are great for an understated finish, creating a smooth, continuous line of brilliance

For someone who wears jewelry often or on the go, bezel or channel settings might be a better fit.

III. Carat Weight That Fits Your Story

5 to 10 carats is the perfect weight to wear daily — subtle but undeniably luxurious. However, for special events or moments, 10+ carats makes a bold and breathtaking impression.

IV. Metal That Matches Your Tone

The Right metal enhances both your style and your skin tone, so choose accordingly.

• Yellow gold adds warmth and richness.
• White gold complements cool undertones and modern aesthetics.
• Rose gold gives a romantic, slightly vintage feel.
• Platinum is great for those with metal sensitivities and offers a naturally bright luster.

Still not sure what suits you best? Decide on the basis of the jewelry you already wear and love—it’s often the best clue.

Read About: Should You Invest in a Lab-made Diamond Tennis Necklace? 

Lab-Grown Diamond Tennis Necklace Styling Tips

A tennis necklace is not just something you wear but something you style. Here are a few ways to make it truly yours.

1. Layer your tennis necklace with a shorter pendant or longer chain to create dimension. Pair a bezel-set tennis necklace with dainty chains or a medallion piece. For the bold, layering two tennis necklaces in different styles, like a graduated and a floating design, can make a statement. This jewelry layering makes your look more appealing.
2. For a casual day out, layer one over a crisp white tee with jeans and a blazer for that cool look. For a business meeting, a round-cut or bezel-set necklace complements a button-up blouse or a structured dress. Heading to a formal event? Wear a graduated or mixed-shape design that complements the neckline of your gown or cocktail dress. 
3. Don’t be afraid to mix metals either—blending white, yellow, or rose gold adds dimension and a modern edge to your overall look.
   

Lab-Made Diamond Tennis Necklaces - The Ethical Elegance

Tennis necklaces have always been about grace, but now, they carry greater weight, not in carats alone, but in values. With clean design, ethical origins, and timeless impact, each piece reflects a smarter way to wear brilliance. Karaters makes it easier to choose jewelry that aligns with your values, complements your style, and lasts beyond moments. It’s not about keeping up—it’s about choosing better. And now, the standout piece in your collection can also be the one you feel proud to own.