15 Stunning Sweetheart Neckline Prom Dresses Under £200

Affordable Elegance for Your Perfect Night

Looking for the perfect prom dress that combines timeless elegance with budget-friendly prices? The sweetheart neckline is a classic choice that flatters every body type, creating a romantic and feminine silhouette that's perfect for your special night. 

 At HappyProm.co.uk, we believe you don't need to break the bank to look absolutely stunning. Here are 15 gorgeous sweetheart neckline prom dresses, all under £200, that will make you feel like royalty without the royal price tag.

1. Classic Red Ball Gown, £92.00

Make a bold statement in this stunning red ball gown featuring a structured sweetheart bodice with delicate boning for support. The full tulle skirt creates a dramatic princess effect, while the subtle sparkle at the waistline catches the light beautifully as you move.
classic red prom gown with sweetheart neckline
classic red sweetheart prom gown


Perfect for: Those who want to command attention and embrace a traditional fairytale look.

2. Blush Pink A-Line with Lace Appliqué, £92.00

This romantic blush pink dress combines a sweetheart neckline with intricate lace appliqué on the bodice. The flowing A-line skirt in soft chiffon creates effortless movement, while the subtle shimmer adds just the right amount of glamour.
Pink A-Line Sweetheart Prom Dress with Lace Appliqué
Pink A-Line Illusion Sweetheart Prom Dress with Lace Appliqué

Perfect for: Romantics who love feminine details and want a dress that's both elegant and comfortable for dancing.

3. Mint Green Mermaid Style, £132.00

Turn heads in this fresh-toned mint green mermaid dress. The sweetheart neckline is adorned with subtle rhinestone, while the fitted silhouette hugs your curves before flaring out at the knees in a dramatic train.
embellishment mint green mermaid prom dress with sweetheart neckline
embellishment mint green mermaid prom dress with sweetheart neckline

Perfect for: Confident fashionistas who want to showcase their figure and love bold colors.

💎 Sweetheart Neckline Prom Dresses Style Tip

Sweetheart necklines pair beautifully with statement earrings and an updo hairstyle. Keep necklaces minimal or skip them entirely to let the neckline be the focal point!


4. Navy Blue with Illusion Sleeves

For those seeking a bit more coverage, this navy blue beauty features delicate illusion sleeves that complement the sweetheart neckline. The fitted bodice transitions into a flowing chiffon skirt with a subtle high-low hem.
navy blue sweethert high low prom dress with illusion sleeves


Perfect for: Anyone who wants arm coverage without sacrificing the romantic sweetheart shape.

5. Champagne Sequined Sheath, £99.00

Sparkle all night in this champagne-colored sheath dress completely covered in tiny sequins. The sweetheart neckline adds softness to the sleek, figure-hugging silhouette, while a small side slit allows for easy movement.
sequined champagne sheath prom dress with sweetheart neckline


Perfect for: Glamour lovers who want to shine under the lights and prefer a more fitted style.

6. Lavender Tulle with Floral Embroidery, £127.00

This dreamy lavender dress features a sweetheart bodice adorned with 3D floral embroidery that extends onto the layered tulle skirt. The soft color and romantic details create an ethereal, garden-party vibe.
lavender tulle mermaid prom dress with floral embroidery
lavender tulle mermaid prom dress with floral embroidery

Perfect for: Dreamers who love whimsical details and soft, feminine colors.

7. Black and Gold Two-Piece Set, £45.36

Stand out from the crowd in this modern two-piece set featuring a black sweetheart crop top with gold beading and a matching high-waisted full skirt. The contemporary design offers a fresh take on prom fashion.
black and gold two pieces sweetheart prom suit

Perfect for: Trendsetters who want something unique and fashion-forward.

👗 Sweetheart Prom Dresses Fitting Tip

Sweetheart necklines work beautifully on all body types! For smaller busts, look for styles with padding or ruching. For fuller busts, ensure there's proper boning and support in the bodice for comfort and confidence.


8. Coral A-Line with Beaded Waistband, £93.00

This vibrant coral dress brings sunshine to any prom with its cheerful color and simple elegance. The sweetheart bodice is enhanced by floral lac wide straps, while the flowing chiffon skirt moves beautifully with every step.
coral pink A-line sweetheart prom dress with straps
coral pink A-line prom dress with sweetheart neckline

Perfect for: Those who love bright colors and want a dress that photographs beautifully.

9. Silver Metallic Slip Dress, £102.00

Channel old Hollywood glamour in this sleek silver metallic dress. The sweetheart neckline and bias-cut silhouette create a sophisticated, vintage-inspired look that's surprisingly affordable.

silver sleek prom dress with sequined sweetheart neckline
silver sleek prom dress with sequined sweetheart neckline

Perfect for: Minimalists who appreciate understated elegance and timeless style.

10. Dusty Rose with Corset Back, £170.00

This dusty rose dress features a romantic sweetheart neckline and a stunning corset-style lace-up back that allows for a customized fit. The A-line skirt has subtle pockets (yes, pockets!) and a sweep train for added drama.


dusty pink floral sweetheart prom gown
Perfect for: Practical romantics who want both beauty and functionality in their dress.

11. Royal Blue with Crystal Details, £94.00

Make a regal entrance in this royal blue ball gown featuring a sweetheart bodice encrusted with crystals that catch every light. The full skirt provides that classic princess moment you've been dreaming of.

royal blue long sweetheart prom dress with crystal details
royal blue long sweetheart prom dress with crystal details

Perfect for: Anyone who wants maximum sparkle and a truly princess-worthy gown.

💃 Prom Dress with Sweetheart Neckline Movement Matters

When trying on sweetheart neckline dresses, make sure to move around! Sit down, raise your arms, and do a little dance to ensure the bodice stays in place and you feel secure all night long.


12. Emerald Green Chiffon with Ruching, £90.00

This jewel-toned emerald green dress features a beautifully ruched sweetheart bodice that creates a flattering effect for all body types. The flowing chiffon skirt in the same soft hue makes this dress perfect for spring and summer proms.
Perfect for: Those who love soft, refreshing colors and want a comfortable, flowy dress.

13. Burgundy Velvet Stunner

For winter or autumn proms, this luxurious burgundy velvet dress is absolutely perfect. The sweetheart neckline showcases the rich fabric, while the fitted silhouette with a subtle mermaid flare creates a sophisticated, mature look.
burgudy velvet mermaid prom dress with sweetheart neckline

Perfect for: Cold-weather proms and anyone who loves rich textures and deep, dramatic colors.

14. Peach Organza with Ruffled Skirt, £137.00

This playful peach dress features a fitted sweetheart bodice with a beaded waistline and a fun ruffled organza skirt that adds movement and dimension. The combination of structure and playfulness makes this dress unforgettable.
Peach Organza Prom Gown with Ruffled Skirt
Peach Organza Prom Gown with Ruffled Skirt

Perfect for: Fun-loving individuals who want a dress with personality and aren't afraid of volume.

15. White with Gold Embellishments, £137.00

Close out our list with this stunning white gown featuring intricate gold embellishments on the sweetheart bodice. The A-line skirt keeps things elegant and timeless, while the metallic accents add just enough sparkle.

high illusion sweetheart white prom dress with gold embellishment
Perfect for: Those who want a sophisticated, elegant look with a touch of glamour.

Final Thoughts

The sweetheart neckline remains one of the most flattering and timeless choices for prom dresses, and as you can see, you don't need to spend a fortune to look absolutely stunning. Whether you prefer classic ball gowns, sleek mermaid silhouettes, or modern two-piece sets, there's a sweetheart neckline dress under £200 that's perfect for you.

Remember, the best dress is the one that makes you feel confident and beautiful. Consider your personal style, the formality of your event, and most importantly, what makes you feel like the best version of yourself. At HappyProm.co.uk, we're committed to helping you find that perfect dress without breaking your budget.

Happy shopping, and have an absolutely magical prom night! ✨


You may also interested in:

Is the Sweetheart Neckline Prom Dress Right for You? Finding The One


Ready to Find Your Dream Dress?

Visit HappyProm.co.uk today and explore our full collection of affordable prom dresses!



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