Tier 4 · Diamond specialists
“I know my specs. I want the best stone for what I spend.”
The diamond specialists are built around the stone. Large certified inventories, published prices, filters, and 360° viewers let you compare diamonds side by side before you speak to anyone.
Most pair their online search with a London showroom, so you can see your shortlist in person before you commit.
The stone. Huge certified inventories, published prices, filters, and 360° viewers. The experience is mostly self-serve, with a showroom visit to confirm your choice.
You know your specs and mainly want the widest choice of certified diamonds, with every price visible upfront.
Our reviews
Online-first diamond jeweller with a searchable database of hundreds of thousands of certified diamonds, natural and lab-grown, with 360° visuals on many. Research online, then book a consultation at their Mayfair showroom.
Ground-floor showroom on Hatton Garden with both natural and lab-grown diamonds. Walk-in friendly with extended hours including Sundays. Good selection of ready-to-wear engagement rings.
Showroom at 100 Hatton Garden with an extensive online catalogue. Every diamond comes with GIA documentation, with natural and lab-grown options and a bespoke service.
What to expect
Filter by shape, carat, colour, clarity, cut, and certificate. Every stone has a price and a report you can read before you visit.
Pair your diamond with a setting from the catalogue, or ask about bespoke options.
Book a showroom viewing to see your shortlisted stones. Look at them in daylight and under the loupe before you pay.
The bigger picture
A higher tier doesn't mean a better diamond. It means more of your money goes to the name and the experience around the ring.
Tier 1 of 5
“The name and the rarity are the point.”
The name and the rarity.
Bond Street & Mayfair boutiques
Yes, if you do three things. Buy a certified stone (GIA or IGI), read the report yourself, and see the diamond in person or check the returns policy before you pay. Online specialists give you more choice and more price transparency than a shop cabinet.
Look for a searchable database of certified diamonds, published prices, a London showroom where you can view stones, and a clear returns policy. The jewellers on this page all offer online search with a London showroom.
The certificate number (look it up on the lab’s website), the exact carat, colour, clarity, and cut grades, the returns window, resizing policy, and whether the price includes the setting and VAT.