From budget-savvy beauties to mid-range show-stoppers — something stunning for every price point.
Purple is having a serious prom moment. From whisper-soft lavenders to deep, moody plums, the shade offers something for every skin tone, personality, and vibe. Whether you’re dreaming of floating chiffon or a sleek satin column, you’ll find it somewhere in the violet family.
Looking glamorous at prom doesn’t have to mean overspending. In fact, many retailers now offer on-trend purple prom dresses under £150, from satin slip silhouettes to dramatic tulle gowns. Affordable options are widely available thanks to online retailers like ASOS and Windsor, where prices often range from £30–£120 for stylish formal dresses
Under £50 (Ultra Budget Finds)
Look the Part Without Breaking the Bank. Proof that glamour doesn’t have to cost the earth. These four finds deliver serious style at brilliant prices.
1. The Lavender Cloud Maxi Dress
- Price: ~£36
- Source: ASOS
- A floaty chiffon maxi in soft lavender with sheath skirts and delicate asymmetric straps. The body-enchanced sihouette is dreamy for dancing, and flatters beautifully. Our top budget pick for a reason — it photographs like a dress three times its price.
- Ideal for: Minimalist glam & first-time prom shoppers.
2. Velvet Bodycon Mini
- Price: ~$26.00
- Source: Boohoo
- A trendy, body-hugging mini with a modern silhouette.
- Ideal for: After-parties or fashion-forward prom looks.
💡 Why it works: Dresses in this range are often simple cuts with high styling potential—you elevate them with accessories.
Why it works: Dresses in this range are often simple cuts with high styling potential—you elevate them with accessories.
£50–£100 (Best Value Picks)
More Polish, More Presence; Better linings, more considered cuts, and details that actually last the night. This is where value and quality find each other.
Corset Fishtail Maxi Dress (Plum)
- Price: ~£110
- Source: Glamlora
- A structured corset bodice with fishtail hem creates an hourglass illusion.
- Ideal for: Curvy figures & red-carpet vibes.
Corset Tulle Ball Gown
- Price: ~£84
- Source: Chi Chi London
- The quintessential prom dress: a boned lace corset bodice in deep violet, flowing into layers of purple tulle. It’s the kind of dress that earns gasps at the door.
- A supportive structure that means you can skip the shapewear entirely.
Satin Column Gown
- Price: ~£84
- Source: Lipsy London
- The quintessential prom dress: a boned lace corset bodice in deep violet, flowing into layers of purple tulle. It’s the kind of dress that earns gasps at the door.
- A supportive structure that means you can skip the shapewear entirely.
Ruched One-Shoulder Gown
- Price: ~£68
- Source: ADASA
- An asymmetric one-shoulder silhouette in bright purple crepe, with all-over ruching that creates a figure-hugging, fluid effect. The sculptural shoulder detail is architectural without being costume-y.
- at £68, this could easily pass for a £200 dress.
Quick Tips Before You Buy
- Order two sizes. Online sizing varies wildly between brands. Order your usual size and one up, then return the one that doesn’t fit.
- Check the lining. Unlined dresses in thin fabrics can look sheer under flash photography. Always check product notes for lining details.
- Colour varies by screen. Request a fabric swatch or check user photos for accurate colour. Lavender can photograph as white, plum as black.
- Leave room in the budget. Even a £35 dress needs alterations sometimes. Factor in £15–30 for a hem or taken-in waist — it makes a huge difference.
£100–£150 (Premium Budget Looks)
When You Want to Feel Truly Special, Premium fabrics, considered construction, and details that hold up all night. These are investment pieces you’ll remember forever.
Sequin Mermaid Prom Dress
- Price: £132
- Source: Happyprom UK
- High-shine sequins + mermaid fit = maximum glam.
- Fully sequinned in a indigo purple hue, cut into a figure-skimming long with a plunge neckline and subtle side slit for movement. The sequins here are tightly sewn — no moulting — and the built-in body shaper takes the place of shapewear. This is the most “event ready” pick in the entire list.
- Ideal for: Statement entrances.
Lace & Beads Corset Midaxi Dress
- Price: ~£128.8
- Source: Happyprom UK
- A mix of lace texture and corsetry creates a luxury feel without the price tag.
High slit + ruching = slimming and elongating effect.
A spaghetti straps purple maxi gown with a dramatic side slit that sways with every step. The deep V-neckline and high-quality jersey fabric make this feel far more expensive than it is. Happyprom UK specialises in custom-made occasion dress, and this is one of their standout pieces for the season. - Ideal for: Romantic or vintage-inspired looks.
Floral Organza Ballgown
- Price: ~£98
- Source: Happyprom UK
- The most romantic dress on this list: a multi-layered organza ballgown in violet and orchid tones with subtle embellished sweetheart neckline. The empire waist and layered skirt create that timeless princess silhouette, while the quality of the fabric means it moves like something from a couture house. A genuine heirloom piece.
Quick Comparison Table
| Budget Tier | Dress Style | Best For | Vibe |
|---|---|---|---|
| Under £50 | Mesh / Mini | Trendy, budget shoppers | Minimal & modern |
| £50–£100 | Corset / A-line | Most body types | Balanced glam |
| £100–£150 | Mermaid / Ball gown | Statement looks | Luxury aesthetic |
Shop by Style (Find Your Perfect Look)
💎 Corset Prom Dresses (Slimming & Structured)
- Built-in boning enhances your waistline instantly
- Creates an hourglass silhouette without shapewear
- Perfect for: Curvy, hourglass, and pear-shaped bodies
👉 Shop Corset Purple Dresses Under £150 →
Satin & Slip Dresses (Minimal Luxe)
- Smooth, glossy fabric for a “quiet luxury” aesthetic
- Lightweight and comfortable for all-night wear
- Perfect for: Petite and minimalist styles
Sequin & Glitter Dresses (All-Out Glam)
- Reflects light beautifully for maximum impact
- Ideal for photos, entrances, and spotlight moments
- Perfect for: Bold personalities & evening events
Tulle & Ball Gown Dresses (Princess Vibes)
- Voluminous skirts create dramatic movement
- A-line cuts flatter all body types
- Perfect for: Classic prom & fairytale themes
👉 Shop Tulle Purple Ball Gowns →
How to Choose the Right Purple Prom Dress (Under £150)
- Want to look slimmer? → Go for corset, ruching, or A-line styles
- Want maximum drama? → Choose tulle ball gowns or sequins
- On a tight budget? → Stick to simple silhouettes + bold accessories
- Petite? → Try midi or high-slit designs to elongate legs
Your perfect purple dress is out there.
According to shopper trends, dresses under £150 are now one of the most popular price ranges, with many buyers preferring affordable options they can wear again.
Whether you’re spending £28 or £148, the right dress is the one that makes you feel like the best version of yourself the moment you put it on. Trust that instinct — it’s never wrong. This means you can confidently position your product pages as:
👉 “Affordable luxury”
👉 “Under £150, looks like £500”
Don’t Miss Your Dream Dress, Shop All Purple Prom Dresses Under £150 Now →
Why Shop Happyprom?
✔ Affordable luxury under £150
✔ Custom sizing available
✔ Worldwide shipping
✔ 24/7 customer support
✔ Thousands of happy customers
Looking expensive isn’t about how much you spend—it’s about choosing the right silhouette, fabric, and fit. With Happyprom, you get all three—without going over £150.
