The 9 Most Stylish Necklace Designs to Shop by Shape in 2025

In 2025, jewelry fashion is embracing refined shapes and bold individuality, and nowhere is this more apparent than in necklace design. At Caratus Jewels, we craft Diamond Necklaces that are not only beautiful but also meaningful expressions of personal style. This year, it's all about shopping by shape — because the silhouette of a necklace is just as impactful as the sparkle it holds.

Here are 9 of the most stylish necklace designs by shape that are defining elegance this year:

1. Round Necklace – Classic & Timeless

The Round Diamond Necklace is a cornerstone of classic jewelry design. Its perfect shape and bright sparkle make it loved by many. The round design stands for forever and wholeness, making it a sweet symbol of strong and lasting bonds.

With simple fashion becoming more popular, round diamond necklaces are worn alone for a clean look or layered with other pieces for a stylish twist. This shape never goes out of fashion and fits all styles and outfits.

Styling Tip: For a simple, everyday look, wear a single round diamond pendant on a thin chain. For special occasions, layer it with smaller round necklaces to add extra shine.

2. Oval Necklace – Elegantly Elongated

The Oval Necklace gives a fresh twist to the classic round shape. Its longer curves make the neck look more graceful and add a touch of quiet beauty.

Oval diamond pendants are very flexible — bold enough to wear alone, but also gentle enough to match with other jewelry. Many brides choose oval shapes for their soft, elegant style.

Styling Tip: Wear an oval diamond on a thin chain for a clean, modern look. It looks great with deep or wide necklines like plunging or boat necks.

3. Emerald Necklace – Bold & Architectural

The Emerald Diamond Necklace stands out with its rectangular shape and smooth step cuts. It has a clean, modern look that feels bold and stylish, eye-catching without being too loud.

This shape is loved by women who enjoy a mix of old and new styles. Instead of sparkling like other cuts, it gives off a calm, mirror-like shine that feels classy and unique.

Styling Tip: Wear it with plain-colored clothes to let it stand out. Try an emerald-cut diamond or a colored stone like blue sapphire or green emerald in a bezel or halo setting for a bold look.

4. Princess Necklace – Modern Royalty

This Princess Necklace showcases brilliant sparkle and sharp square edges, which provide the ideal combination of modern and classical style. It's bold, structured, and full of attitude, but always falls short of being overwhelming.

This shape is the go-to for women who want a refined yet playful look. It's often chosen for engagement pendants due to its youthful energy and regal charm.

Styling Tip: Wear with tailored outfits or a structured blouse. Princess cuts also look stunning in clusters or as a geometric centerpiece.

5. Pear Necklace – Delicate & Feminine

Also known as the teardrop shape, the Pear Necklace is full of soft beauty and romance. With one round end and one pointed end, it makes the neck look longer and adds a gentle, graceful feel.

People love the pear shape for its lovely curves and unique look. It's a favorite for special moments like weddings because of its elegant style.

Styling Tip: Choose a drop-style setting to make it more eye-catching. Pear Necklace looks best with sweetheart or off-shoulder necklines.

6. Radiant Necklace – Fire & Brilliance

With the dazzling faceting of a round cut and the angular edges of an emerald cut, the Radiant Diamond Necklace is for those who want the best of both worlds. It radiates fire and sparkle, making it impossible to miss.

Radiant shapes are a fashion-forward choice this year, appealing to those who love classic glam but crave a little edge. It's also a top pick for colored stones.

Styling Tip: Try a radiant pendant in vibrant hues — yellow, champagne, or pink — for a bold daytime statement or a glowing evening ensemble.

7. Marquise Necklace – Luxe Drama

The Marquise Necklace is all about elegance with a bold twist. Its long, pointed shape was first made for French royalty, and it still feels fancy today. The design makes your neck look longer and adds a touch of drama to any outfit.

With a mix of vintage style and modern flair, the marquise cut is perfect for those who love unique jewelry. It's eye-catching and stylish.

Styling Tip: Wear a marquise solitaire pendant with your hair up and an open neckline. The long shape makes a strong style statement.

8. Heart Necklace – Affectionate & Romantic

Heart necklaces are the quintessential feminine and loving gift. Whether gifted or purchased as a sign of self-love, it’s sentimental and fashionable. 

Emotional jewelry is becoming a hot trend, and the heart shape is not just reserved for Valentine’s Day anymore. With more fashion-forward pieces and minimalist settings, it’s something you can wear every day! 

Styling Tip: Opt for a minimalist outline heart or a pavé diamond heart to layer with other necklaces for a sweet, delicate look.

9. Baguette Necklace – Sleek & Modern

Long, narrow, and impeccably polished, the Baguette Diamond Necklace offers a linear, contemporary style perfect for minimalists. Though it sparkles less than traditional cuts, it shines with sleek sophistication.

Baguette designs are being used in everything from stacked pendants to bar-style necklaces, making them a favourite for layering and statement stacking.

Styling Tip: Mix baguette pendants with dainty chains or wear them in multiples for a stacked bar effect — perfect for the modern dresser.

Final Thoughts

Each necklace shape tells a story of grace, boldness, love, or modernity. At Caratus Jewels, our 2025 necklace collection captures this story through master craftsmanship, ethical sourcing, and timeless beauty.

Whether you're drawn to the classic sparkle of round, the vintage drama of marquise, or the edgy charm of baguette, your perfect necklace shape awaits.