First Diamonds | Bespoke Diamond Jewellery, Hatton Garden
Hatton Garden, London

Diamonds
direct from the source

Save your money. Work directly with diamond experts who manufacture diamonds first-hand — and craft bespoke pieces at prices retail can't touch.

★★★★★ 5.0 from clients across London & beyond
Direct From the Mines
GIA & IGI Certified
Hatton Garden, London
Bespoke Design
By Appointment Only
Start Today

Your perfect diamond.
It starts here.

Tell us about the piece you have in mind — it only takes two minutes. A diamond expert will follow up personally.

Step 1 of 6
Let's Get Started

Who is the piece for?

Piece Type

What are you looking for?

Diamond Shape

Preferred diamond shape?

Budget

What's your ballpark budget?

Timeline

When do you need the piece?

Almost There

Where should we send your consultation details?

A diamond expert will reach out personally within one business day.

No spam, ever.

Prefer to call? +44 746 632 1861 — a real person always picks up.

No obligation
100% free consultation
In-person or virtual
Why First Diamonds

The advantage of buying direct

Instead of buying from 4th hand in the supply chain - buy directly from the source, we get our diamonds directly from mines in South Africa being first hand , from mine to market.

Unbeatable Value

Direct sourcing means no middlemen, no markups. You get a superior stone at a price that would be impossible on the high street.

See It Before It's Made

We create a detailed CAD design for your approval before production begins. No surprises — just exactly what you envisioned.

Expert Selection

We hand-select 2–4 diamond options based on your brief. Every stone is chosen for cut quality and brilliance — not just carat weight.

Made In-House, A to Z

From raw stone to finished piece — everything is handled by our team. No outsourcing, no compromise on quality.

The Process

From consultation to creation

No diamond experience needed. We guide you through every decision — in person at Hatton Garden or online.

1
Book a Consultation

Share what you're looking for, your preferred style, and your budget. We'll take it from there — no pressure, just honest advice.

2
Choose Your Diamond

We present 2–4 hand-selected diamond options tailored to your brief. Every stone is certified and chosen for exceptional cut and brilliance.

3
Design & Approval

Our designers create a CAD rendering of your piece. You approve every detail before we begin production — typically 2–3 weeks.

4
Collect or Deliver

We send you a video of the finished piece. Pay the balance and collect from Hatton Garden — or we ship securely to your door.

Design Your Dream Ring

Trusted by clients across London, the UK, and internationally

Client Reviews

What our clients are saying

★★★★★

"Amazing service from a company that really knows what they are doing. From start to finish you will be treated like royalty — they cater for your every request and customise to your needs. Highly recommend First Diamonds."

KN
Kyle N.
Bespoke jewellery, London
★★★★★

"Excellent service from John and the First Diamonds team. The experience was warm, professional and transparent. They explained every detail about quality and certification, making the whole process feel safe and informed. Never pushy — genuinely focused on finding the right stone."

JF
Jaqueline F.
Tanzanite purchase
★★★★★

"I had a fabulous experience with First Diamonds! Heidi was a pleasure to work with, very knowledgeable and helped me look through many options to find the perfect jewellery. The pieces are stunning and well priced. I can't recommend First Diamonds enough!"

AM
Ann M.
Fine jewellery, London
Real Results

Pieces our clients are wearing

Client ring
Client ring
Client ring
Common Questions

Everything you need to know

Still have questions? Book a consultation — we're happy to walk you through everything.

Design Your Dream Ring
How long does a bespoke piece take?

Once you've approved the CAD design, production typically takes 2–3 weeks. If you have a deadline, let us know upfront and we'll do our best to accommodate.

Is buying direct really cheaper?

Significantly. We source diamonds first-hand from mines in South Africa, cutting out every middleman. Most clients find they get a noticeably better stone at 30–50% less than high street prices.

Can I see the diamond before committing?

Absolutely. We present 2–4 hand-selected options for you to compare in person at our Hatton Garden showroom — or via video call if you're remote.

Do you ship internationally?

Yes. We work with clients across the UK and internationally. Finished pieces are shipped fully insured via secure courier.

What if I don't know what I want?

Most of our clients start with just a rough idea or a budget. We'll guide you through styles, diamond shapes, and designs — that's what the consultation is for.