Hatton Garden holds several hundred jewellers inside a few streets, and from the pavement most of them look alike. Similar windows, similar claims, similar cards propped against similar rings. The differences between them are real, but they sit behind the counter rather than in the display. If you are buying an engagement ring here for the first time, the useful skill is not spotting a good diamond. It is working out which jeweller will still be helpful to you in five years.
This is the street level version of our wider guide to buying a lab grown engagement ring in London, which covers the three broad routes and what a consultation should feel like.
Start with who actually makes the ring
Some businesses on the Garden design and make on site. Others take your order and send it to a workshop elsewhere, occasionally overseas. Neither approach is dishonest, but it changes what happens when a claw needs tightening or a band needs altering, and it changes how much you can see while the ring is being built.
Ask plainly. Who carves the wax, who sets the stone, and where does the ring physically sit during the weeks it takes to make. Someone with their own bench answers that without pausing. A vague answer usually means you are talking to a shop front rather than a workshop, which is fine if you know it going in and less fine if you find out afterwards.
Ask how the price breaks down
Engagement ring pricing in Hatton Garden varies far more than the quality does. Two jewellers can quote you a thousand pounds apart on the same specification, and the gap is rarely about the diamond. It is about markup, overheads and how many hands the stone passed through before it reached you.
The way to cut through this is to ask for the price in parts. The diamond, the metal, the setting labour. If a jeweller separates those three for you, you can compare quotes properly. If the answer is one number with nothing behind it, you have no way of knowing what you are paying for. We publish our own breakdown in our guide to lab grown diamond pricing in London, which shows what each element costs.
Read the grading report, not the sales patter
Any serious lab grown diamond arrives with a grading report from an independent laboratory. The report covers carat weight, cut, colour and clarity, and carries a unique number that the laboratory laser inscribes on the girdle of the stone.
Ask to see that report before you agree to anything, and ask the jeweller to show you the inscription matches. It takes thirty seconds with a loupe. A jeweller who hesitates, or who tells you the paperwork does not really matter, has told you something useful about how they work.
Treat in house grading with some caution. A report produced by the seller is not independent, however official the paper looks.
Give the setting as much attention as the stone
Most buyers arrive focused on the diamond and give the setting about five minutes. For a ring worn every day, that balance is the wrong way round. The setting decides how securely the stone sits, how often the ring catches on clothing, and whether a wedding band will lie flush against it later.
Claw count, claw thickness and the height of the basket matter more than they sound. A low set four claw ring behaves nothing like a raised six claw solitaire. Handle several before you decide, and ask which designs the workshop repairs most often, because that answer is usually honest. You can see how much the profile changes across our ring settings.
Find out what happens after you pay
The purchase is the short part of the relationship. Rings need resizing, claws wear down over years of daily knocks, and a stone that starts to move needs attention quickly.
Ask whether resizing is included and for how long, whether an annual check costs anything, and what happens if a stone loosens in year three. Get those answers before you pay rather than after. The jewellers worth using tend to answer quickly because they have already thought it through. The ones who have not will improvise in front of you.
For reference, we include one free resize within the first twelve months on engagement rings, cover every piece with a one year warranty, and charge £20 for a clean and polish after that.
What a good consultation feels like
A useful appointment is quiet and unhurried. You should be handling stones and settings, asking awkward questions about price, and leaving without buying anything if you are not ready. If you feel steered toward one particular ring inside ten minutes, that is a sales process rather than a consultation.
It helps to arrive with a rough budget and a rough idea of shape. The rest can be worked out in the room. Looking through our engagement ring collection beforehand is a reasonable way to narrow down what you like before you sit down with anyone.
The short version
None of this needs expertise. It needs five or six direct questions and some attention to how comfortably they get answered. Hatton Garden rewards buyers who ask, and most of the people working here are glad to be asked.
We make our rings on our own bench at 13 Hatton Place, seven minutes from Farringdon, and price each element separately so you can see where the money goes. Settings start at £670 and your IGI certified diamond is priced on top when you choose it. If you would like to look at stones and settings in person, book a consultation and we will take it at your pace.