LONDON DIAMOND SPECIALISTS
Buy Diamonds in London.
Exceptional diamonds. Personally sourced. Beautifully considered.
At Leiser & Co., our Hatton Garden specialists help you find the diamond that is right for you. From Round Brilliant and Emerald to Cushion, Pear, Heart, Princess, Marquise, Radiant, Asscher and Oval cuts, we work with a wide range of certified stones and individual requirements. Both owners come from families of diamond dealers, with generations of experience in the trade.
THE LEISER APPROACH
Why Choose Leiser & Co?
Our wholesale background and extensive diamond-trade relationships give us access to a broad selection of stones, specifications and price points.
Whether you have a particular shape, size, colour or grading report in mind, we take time to understand your requirements. Our approach combines established diamond expertise with personal service at our London office.
A CLOSER LOOK
Selected Creations
Six glimpses of our bespoke jewellery work. Explore each piece to appreciate the details and how the stones move in the light.
Hover to preview · Select a piece to view its short film
A PERSONAL SERVICE
Let's find your diamond.
Tell us the diamond or piece of jewellery you have in mind. Share a certificate, photograph or any details you know, and our team can discuss the possibilities with you.
Prefer a conversation? Speak to us directly.
YOUR ENQUIRY
Request a Quote
BESPOKE JEWELLERY
Made for you. From the first idea.
Our bespoke engagement ring service begins with your choice of diamond and continues through design, refinement and manufacture by experienced goldsmiths.
- 01Choose your diamond
Start with the stone you want at the heart of your piece.
- 02Discuss the design
Share your criteria, preferences and the style you imagine.
- 03See a 3D render
Review a digital model made to your specifications.
- 04Refine the details
Make adjustments until the design feels right.
- 05Made from scratch
Your agreed design is brought to life by our goldsmith.
CERTIFIED DIAMOND EXPERTISE
Knowledge you can rely on.
Certified Diamond Graders
Our diamond grading expertise includes GIA training and experience passed down through generations of diamond dealers. We regularly work with stones graded by GIA, HRD and IGI, and can discuss other certificate types on request.
Experts in Certified Loose Diamonds
From grading characteristics to the finer details of a loose stone, our experience helps us understand what matters when selecting a diamond for a London client.
PERSONAL SERVICE, DISTINCTIVE RESULTS
More than an engagement ring.
Customer Satisfaction
We believe the best jewellery experience is personal, professional and built around the people who trust us with their ideas. Returning clients and lasting relationships are important to our business.
Other Custom Diamond Jewellery
From pendants and bracelets to earrings, necklaces and wedding rings, we work with skilled goldsmiths to bring bespoke designs to life with a beautiful finish.
Contact Leiser & Co.
