Over 160+ 5 Star Reviews

Struggling to find the perfect engagement ring?

Find The Perfect Engagement Ring With London's Master Jeweller

Valentine’s Day Exclusive:

Free Diamond Earrings*

Valentine’s Day Exclusive: Free Diamond Earrings*

100% Complimentary Design & Diamond Discovery Consultation: One-to-one guidance from a Hatton Garden specialist, not a salesperson.

1-to-1 Expert Access: Speak directly with a real expert. Get clear, honest advice on design, diamonds, and budget.

Design Certainty: Our proven system turns her personality into a bespoke ring she will truly love.

Zero Pressure, Private Studio: Take your time in a private studio, away from the high street. Your comfort and clarity always come first.

Proposal Protection: We plan everything around your proposal date. Your ring will be ready, sized, and perfect on time.

No pressure • No obligation • Expert-led guidance

50+ Years

Of Experience

Hatton Garden

Specialists

100%

GIA-Certified Diamonds

Handcrafted

In London

Lifetime Manufacturer’s

Warranty

London’s Trusted Jeweller Behind So Many “Yes” Moments

Our founder, Francesco, believed there was a better way to choose an engagement ring.

Growing up in the jewellery trade, he saw how often men were rushed, misled, or pushed into the wrong decision.

That’s why he created "The Design and Diamond Discovery Consultation".

It is a focused masterclass that removes retail confusion and shows you how the diamond trade really works.

Bespoke Style: We remove the guesswork. We help you understand her style and what she truly likes. The ring feels made for her hand, not taken from a display.

The “Insider” Diamond Masterclass: We go beyond the basic 4Cs. You learn how diamonds really sparkle and how to spot true fire. You’ll know what matters, what doesn’t, and what shops often get wrong.

The Buyer’s Edge: We show you how to spend wisely. Learn where to invest, where to save, and how to avoid high-street markups without sacrificing quality.

The Origin (Natural vs Lab-Grown): Get clear facts with no bias. We explain the real differences so you can choose with confidence and make the right decision for the future.

Francesco Nicolaou

Founder of Primo Diamonds

Committed to helping men find the right ring style and diamond, without confusion.

Exclusive Access to Finding The Right Ring

The Hatton Garden Experience

Leave the busy high street behind. Enjoy a calm, one-to-one session in our private studio. This is your time to explore beautiful stones and design her ring without pressure.

Private Stone Viewing

We select a small range of GIA-certified diamonds and gemstones just for you. Each stone is chosen for beauty and sparkle. You hand-pick the one that feels right.

Insider Diamond Education

Knowledge gives you confidence. We go beyond the basic 4Cs and explain what truly makes a diamond shine. You’ll understand value and make a smart, informed choice.

Bespoke Ring Design

See your ring before it’s made. Work with a master jeweller to create a detailed 3D design. You can view every angle before the ring is crafted by hand.

The Lifetime Guarantee

A Primo ring is made to last. You receive free cleaning, polishing, and check-ups for life. Your ring stays beautiful, year after year.

Flexible Finance Options

Luxury should feel easy. We offer 0% interest and flexible payment options through Klarna. Secure the perfect ring on terms that suit you.

We're Proud to Be Part of So Many Love Stories

"She said yes (and literally cried for 10 minutes)."

"She couldn’t be happier. And honestly neither could I."

"I felt like a hero. Thank you for giving us this moment."

Hear from Our Happy Couples

"Always available to chat via WhatsApp"

What an incredible experience with Primo! After researching and speaking to many companies, Francesco stood out with his no-pressure approach and genuine attentiveness. He guided me through the entire ring design process with patience and was always available via WhatsApp. The final ring exceeded my expectations—and my now-fiancée absolutely loves it! I couldn’t recommend Primo more. Fantastic from start to finish!

Kai Reed - London, UK

"Everyone comments on the ring"

Couldn’t recommend Francesco and Primo anymore, Francesco was extremely knowledgeable and helpful throughout the whole process, he gave me a deep dive into diamonds and really helped me design the most amazing bespoke ring. My fiancée is in love with the ring, and every person that sees it comments on how amazing it is, we will definitely be coming back to Francesco for our wedding bands!

Joel Beecham - London, UK

"Sorted me out in a really tight time-frame

Francesco at Primo Diamonds managed to sort me out with a customised diamond engagement ring in a really tight time frame before I went away on holiday. Fantastic service, beautiful ring and a pretty unbeatable price! A free ring resizing was also included which was very much appreciated.

Craig Peterson - London, UK

Why Smart Men Chose the Private Studio Path

The high street sells rings. We provide the certainty that you’ve made the right decision.

Total Clarity: We translate everything into plain English. You leave knowing exactly what you bought and why it made sense for your budget.

5.0-Star Service: With over 160 verified five-star reviews, you’re not taking a risk. You are joining a community of men who chose clarity over sales pressure.

Direct Expert Access: You’re not passed to a sales assistant. You work with one expert throughout, ensuring accuracy, consistency, and trust.

Zero-Pressure: Our Hatton Garden studio is designed for decision-making, not "closing." We remove the guesswork before a single penny is spent.

No pressure • No obligation • A smarter way to choose

The Primo Blueprint: From Concept to Creation

A clear, expert-led process designed to remove stress and deliver a ring done right.

Step 1: Design Discovery

Meet one expert, in person or online. We take time to understand her style and your budget. From this, we set a clear direction for the ring before any decisions are made.

Step 2: Diamond Selection

We prepare a small, private selection of ethically sourced diamonds chosen for your brief. You compare them side by side and choose the stone with the best sparkle and beauty.

Step 3: Bespoke Design

Your ring is built as a detailed 3D design. You can view every angle and request changes before anything is made.

Step 4: Handcrafted Creation

Once approved, our master jewellers handcraft your ring. Every detail is finished by hand and checked before it is ready to wear.

Once you approve the final design, our master craftsmen in London bring it to life. In just a few weeks, you’ll return to collect a finished piece that is truly one-of-a-kind.

Clear steps • Expert-led •Approved by you

Who We help?

Mr. Fixed Price

You know your budget and you want the best ring for the price you can pay simple.

"I got a bigger diamond for a lower price than what I almost bought from elsewhere, can’t thank Francesco enough” - Harry

The Deer in the Headlights

You have no idea where to start... and you want the engagement to be a surprise.

“I showed up with very little idea of what I was doing! But after my consultation, Francesco found me the perfect ring” - Joel

The Researcher

You’ve done your research and know what you want. Now you need the best jeweller.

"From the many jewellers that we went to, Primo was by far the best choice we made. We were thrilled with the professionalism, the customer service and the knowledge that Francesco had of his products." - Tom

The Last Minute.com

You’ve left it late, and now you’re panicking about having the perfect ring on time

“I was panicked, because our holiday was booked, and the date was looming. Primo worked to a very tight timeline but the quality and care never dropped. The ring made the holiday very special for both of us” - James

For men who want to get it right.

Timeless Styles We Design

Solitaire

Halo

DIAMOND BAND

TriLOGY

Bespoke

Diamonds & Gemstones:

Natural GIA-Certified Diamonds
Lab-Grown Diamonds (IGI Certified)
Precious Gemstones

Metals We Work With:

Platinum
Yellow Gold
White Gold
Rose Gold

Get personal guidance on your diamond & design.

We’ve Helped Over 500+ Men Choose the Perfect Ring

See more google reviews

Clear guidance, just like our customers experienced.

The Primo Promise

Buying a bespoke ring is a big moment. We make sure the only surprise is when she opens the box.

The Perfect Fit, Guaranteed

Don’t worry about the size. We’ll advise you on what to choose. If it isn’t perfect, we’ll resize the ring for you free of charge. It will fit exactly as it should.

A Lifetime of Brilliance

Your ring should look just as good years from now. We offer complimentary cleaning, polishing, and setting checks for life. We don’t just make the ring. We look after it.

Complete Transparency

Every centre stone is conflict-free and independently certified by GIA or IGI. You receive the certificate and full clarity on what you’re buying.

Made From Scratch in the UK

Every ring is bespoke. Nothing is off the shelf. Your ring is designed for your stone and checked by master jewellers before delivery.

Clear guidance. Honest craft. Lifetime care.

Your Journey to the Perfect “Yes” Starts Here

Stop searching. Start creating.

From the first idea to the moment she opens the box, every detail is handled with care.

Step 1: The Design and Diamond Discovery Consultation

Book your complimentary design session. You gain clear direction on her style and your diamond options. You leave knowing exactly what to do next, no guesswork.

Step 2: Expert Craftsmanship

Your design is brought to life by master jewellers in Hatton Garden. Every detail is finished by hand to ensure balance, beauty, and lasting quality.

Phase 3: The Confident Proposal

Collect your ring with complete peace of mind. You’re not just holding a ring, you’re holding something made to last, backed by lifetime care and generations of experience.