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A Guide to Buying Diamonds in London (Hatton Gardens)

What you need to know to avoid getting screwed when visiting Hatton Gardens

By Mike Fried,

Is Hatton Garden the best place to buy diamonds in the UK?

Hatton Gardens is a lovely shopping area that is perfect for window shopping and checking out diamonds and fine jewellery. It is certainly the best option for jewellery shops in England. However, that doesn’t necessarily make them the right place to purchase a diamond. The UK makes up a fraction of the world diamond market. Due to that, their pricing is based on different metrics.

The United States is the dominant retail market, by far, in diamond jewellery. It is far more competitive than the market in the UK. If you are looking for the best value when purchasing an engagement ring, you are better off buying a ring from a reputable US based online retailer.

To help you with the diamond buying process we lean on our expertise and experience. The author of this article, our CEO, Mike Fried has over 20 years of experience in the diamond industry. Mike started from the bottom, sorting and evaluating hundreds of thousands of diamonds to learn every facet (pun intended) of diamond quality and value. Mike followed that up by spending years buying and selling diamonds on the wholesale market as well as selling tens of millions of dollars worth of diamonds to diamond retailers.

What we cover in this article:

Ordering online: UK vs. US
Secret shopping Jewellers in Hatton Gardens
How to shop for a diamond in Hatton Gardens

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The Worldwide Diamond Market

Almost 80% of Diamonds Are Sold in the US

I have always been fascinated by diamond markets outside the US. While Ira spent some time selling overseas, my focus was always on the US market.

Given that almost 80% of diamonds are sold in the US, I am curious how the shifted supply and demand curve affects the price and overall shopping experience.

When I joined Ira and started to help readers on a daily basis, my fascination grew exponentially. Not only am I an avid traveller (I currently live in the Czech Republic), but I started to receive emails from our international readers.

According to its official web site of the, “The London Diamond Bourse first opened its doors in 1940. The necessity for London to open a trading floor came about mainly as a result of the occupation of Belgium in May 1940 by the Nazis.”

Ordering Online: UK vs US

As I started out, my gut feeling was that readers from the UK (and other countries, but I will focus on them as I will explain below) would get far better value ordering online from a US-based site such as Blue Nile, James Allen or Brian Gavin Diamonds.

After a couple of years and thousands of readers emailing me, I can’t imagine a scenario where it made sense to buy in the UK. Since August is a bit of a slow month, I decided to take a quick trip to London and see for myself.

Besides, it’s a good excuse to have dinner at Gordon Ramsay’s Maze Grill.

Where is Hatton Garden Located?

Hatton Garden is a commercial area and street in the Holborn district of the London Borough of Camden. Hatton Garden is home to dozens of jewellery shops and has long been London’s capital for diamonds. Many shoppers find their engagement rings, wedding bands and other fine jewellery while shopping the streets of Hatton Garden.

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The Different Shopping Experiences

I wanted to experience Hatton Garden as our readers would. So earlier this week I hopped on a quick flight to meet my friend, Christine, who lovingly pretended to be my fiancé for a little secret shopping. I also wanted to see for myself how much of a “hassle” it was ordering from the US.

I should start by saying we obviously feel online retail offers better pricing than a store can ever match. That said, I understand people may want a level of service they feel they can get from a bricks and mortar retailer.

Tiffany & Co charges (at least) double what you would pay from a site we recommend. But there is no question about the level of service they provide and the added mystique of the “Little Blue Box.”

Recognizing the Value of the Premium

The trick is to recognize just how much extra you are paying and what, if anything, you are getting in return for that premium.

Shockingly I found that, despite the serious premiums paid, Christine and I felt like we got less service than the online retailers provide – not more. As we’ll highlight below, the sales staff ranged from barely knowledgeable to barely ethical, and we were rarely offered personal service that justified any premium.

The few locations that had knowledgeable and helpful staff charged insane premiums for it. You can read all about it below, but I just couldn’t find a single diamond that justified the price they were charging.

Part One: Hatton Garden Jewellers Reviewed

After a quick coffee, Christine and I set out on our journey to find the best jewellers in Hatton Garden. I let her take the lead, so we’d have a more authentic experience. Shop after shop, two themes came out.

1) The prices were as exorbitant as I expected them to be, and

2) The level of service and knowledge was severely lacking.

It is common to find people that dance around the truth because they want to upsell the diamond they own. Sadly, that is not surprising.

What was surprising though, was that salespeople in many of the stores (even upscale ones) showed less knowledge than the average department store salesperson.

We came across four types of stores during the day.

According to the Evening Standard, in 2016 The London Diamond Bourse considered a move out of its Hatton Garden home in a move that would see diamond traders “move en masse away from historic London home to suburban hub”

Overpriced, Poor service

Christine chose our first shop based on the elegant look of the shop and the two rings she liked in the window. The first was a princess cut 0.40ct D VS1 (far above the color/clarity we recommend, but nicely cut) in a simple platinum setting with 2 small side stones (about 0.03ct each) on each side.

Petite diamond enegagement ring setting
Petite Diamond Engagement Ring from Blue Nile

He never told us the details of the ring, but it was similar to this Blue Nile ring, which costs about £653.

The price for the whole ring was £3,995. If you put an identical diamond from Blue Nile in a similar Blue Nile ring, the price would come in at £1,248.

The Unconvincing Salesman

He really lost us though, when he showed the second ring. It was a round 0.60 H VS1 in a white gold simple solitaire setting for the same price. Again, it was very overpriced (you can get an identical ring for under £2,000 without a problem).

But Christine asked him why the GIA cert for the round said “Cut: Excellent” and there was nothing for the princess cut. The salesman claimed he had been working there for 20 years and had extensive training.

He explained that only round diamonds have cut grades (true), and the cut grade showed “how round” it was. Not only is this absurdly incorrect, but it also makes no sense (if that were the case, a princess cut would have a poor cut grade instead of nothing).

No Effort, No Alternatives

His explanation confused us more than it explained things. What really bugged us was that he provided no insight into what we were buying and no effort to educate us. He also made no effort to offer alternatives (be it a better option for a ring or diamond).

What is the point in overpaying if you are getting inferior service?

Seemingly Not Too Bad, but Slick.

A little while later, we went into another store. The prices were seemingly more reasonable, but Christine felt a little bit uncomfortable with the salesperson. I tried not to hammer the salesperson (as I obviously know a lot more than I was letting on), but I was appalled by her behavior.

Floating halo ring setting
Floating Halo Setting From Blue Nile

A perfect example was when she showed us a round 0.40 F VS1 in a vintage style halo setting. The ring was a cheap imitation of the Tiffany Legacy design. The price was £2,400 which on the face of it didn’t seem so bad.

A similar ring and diamond from Blue Nile with this diamond and setting costs £1,950. The premium you were paying was (theoretically) “only” 19% (roughly), seemingly more reasonable than the 100% premium at most stores.

Unethical Sales: Disregarding the Certificate and Sales Talk 

The thing is the diamond didn’t look very sparkly as Christine noticed. We asked to see the cert and (as you can see) it was not a well-cut diamond. When we asked why it wasn’t an excellent cut, she threw every bit of sales talk she can think of at us.

“Who cares what the certificate says, you look at a diamond with your eyes” and “I’m in the business for 40 years and this is why I never bother reading a GIA certificate.” Well, I only have 12 years in the business but I can tell you what my eyes saw.

The diamond had a terrible fish-eye look that is common in diamonds with shallow cuts and/or large tables. It didn’t refract light as it should and it was completely dead in the center. So here we were paying a 30% premium for a far inferior product being peddled by an unethical salesperson.

The Scum Of The Diamond Industry

The worst-case scenario was dealing with real slimeballs. They would offer illegitimately certified or non-certified diamonds. We had one show us a diamond they claimed was GIA certified (I asked three times because I could see the grades were way off).

After insisting on seeing the certificate, she showed us an appraisal by a GIA gemologist a few stores down. This is a common scheme people use (they understand most people have only a superficial knowledge of diamond buying).

You should know that it is very rare that one of those stores is actually independent. Usually, one company owns five or six of them. So that ‘appraisal’ was likely written by the same company trying to sell it (at best, it’s just a friend doing a favor).

Tricky Appraisals

They claimed it was a G VS1. It looked more like a J SI1 to me and it was poorly cut.

Unfortunately, there are millions of different tricks people like this use. It’s difficult to remember everything you are reading on sites like ours and may fall for a trap.

The Really Overpriced

We managed to find one store with excellent service. The saleswoman met our requests and offered options based on Christine’s feedback and her own intuition. It was the first time we felt we were going to find what Christine wanted.

We settled on a nice 1.09 D VS1 round diamond in a 3-stone setting (pear side stones). The salesperson, with very little prodding, explained how HRD is a weaker certificate than GIA and that it looked like an E VS1 to her.

D VS1 round diamond
1.09ct D-VS1 

The specs were nice and the ring was brilliant. The problem? The price was a whopping £21,500. Using this diamond from James Allen (the one she showed me had identical specs) and setting as a comparison, you would be paying over a 50% premium.

While I am singling out four particular stores, they were in line with everything we saw on the street. These were not exceptions to the rule.

How to Shop for a Diamond in Hatton Garden

While we recommend shopping online, we still provide our readers with tips for shopping in Hatton Garden and elsewhere. Keep these recommendations handy for when you enter a jewellery store.

1. Check the certification: Every diamond should come with a certificate. But you need to look at who issued the certificate. We only recommend diamonds with a GIA certificate. This lab entity is the most consistent and reliable — giving you validation of the diamond you’re getting.

Choosing a stone that’s certified by another entity can result in buying a diamond that’s of lesser quality. If a seller in Hatton Garden — or anywhere — is encouraging you to buy a diamond with a certificate other than one from the GIA, make sure you decline and shop elsewhere.

2. Evaluate the cut: A diamond’s cut is the most important quality. It impacts how much light is reflected off of the diamond and back to your eyes. That’s why you should only consider excellent and ideal cut diamonds. Beyond the grading, ensure the diamond gives off plenty of brilliance and fire. For a round cut diamond, keep the depth percentage below 62.5% and the table percentage below 60%. Read our guide on diamond depth and table for more recommendations.

3. Assess clarity: The diamond clarity on the certificate is important, but it’s more crucial to find a diamond that’s eye-clean. In other words, the diamond should be clear of any blemishes and inclusions when you look at it with the naked eye. Move each diamond away from the bright lights in the jewellery store to get a better look at the stone. If you notice any imperfections, the diamond is not eye-clean. In general, diamonds graded a VS1 or VS2 clarity will be eye-clean, but much less expensive than VVS and FL clarity diamonds.

We have recently developed Ringo, a patented artificial intelligence model, that can examine videos of diamonds and determine if they are eye-clean. Ringo will also filter for other parameters like making sure the diamond is well-cut, doesn’t have fluorescence issues and will match the style setting you choose. This tool can help you learn about eye-cleanliness and how to determine it.

4. Gauge the Color: With a colorless diamond, you want the stone to appear white. Typically, a diamond in the G-I range will give you a colorless stone, but will cost far less than diamonds in the D to F color range.

As you assess diamond color, keep in mind the setting you’re choosing. If you opt for yellow gold or rose gold, you may be able to select an I, J, or K color diamond. The stone will appear white in relation to the ring’s slightly darker band. If you choose a white gold or platinum setting, we suggest staying in the G-I color range.

5. Don’t Rush: With a purchase as large and as special as a diamond ring, don’t make a rash decision. If a salesperson is urging you to decide quickly, take a step back. Be sure to compare diamonds, ring settings, and prices. Look online to see if you can find something even better.

If you want help with evaluating and choosing a diamond, reach out to our experts.

Part Two: Shopping Online

I won’t get into the specifics of why online shopping is so much cheaper (we have covered that thoroughly in this article). Alternatively, you can read our article on where to buy engagement rings.

So I stuck with sites that have gotten excellent feedback from our readers (and offer good pricing, photos, etc). Both of these sites offer free shipping to the UK.

James Allen

I used the live chat feature at jamesallen.com to purchase the 0.40ct D VS1 ring mentioned earlier in the article. As we’ve had so many customers from the UK purchase from James Allen with nary a complaint about the service, I didn’t actually complete the purchase.

But I did have a long chat with Christina (I secret shopped with her). She was very helpful with her guidance on the diamond and setting. She also explained the shipping process and how I would need to pay, through Fedex, the VAT and taxes.

Our Reader’s Feedback

Many of our readers have done this and I have never heard of a problem.

The total price for the ring would have been £1,933 and it would have taken two weeks to have the ring delivered (since it wasn’t in stock, they needed to make it up). Shipping takes 3-5 business days. The only potential for added cost would have been if I returned the ring.

I would have had to pay £48 for the return shipping. Considering that less than 1% of our readers end up returning a ring we help them pick out, risking that £48 of potential cost for a savings of £2,000 seems like a no-brainer to me.

Blue Nile

Of course, this article wouldn’t be complete without actually ordering something from overseas to get the full experience. Killing two birds with one stone, I ordered a pair of earrings from Blue Nile (which I wanted to do for our Diamond Stud Earrings Review).

I chatted with Nicollete on their live chat. She was helpful in picking out the right pair for my budget and handled the processing perfectly.

At the time of writing this article, one advantage we received working with Blue Nile was that they had operations in Europe. Everything to do with the taxes and shipping was super easy. That is no longer the case and you have to pay the VAT and taxes.

Return Shipping and Customs Fees

As beautiful as the earrings were, I wasn’t planning on holding on to them (despite Christine’s pleas), so I shipped them back. Blue Nile sent me a return shipping label for 30 pounds. They received the package the next day and I received the cash return the next week (we paid by bank transfer).

Final Thoughts on Buying a Diamond in Hatton Garden

While it may seem enticing to shop in Hatton Garden for the experience, we’ve found that it’s simply not worth it. The shopping experience is less than stellar and the inflated prices can be quite steep.

Instead, we suggest buying a diamond online from a reputable vendor like Blue Nile. You’ll get a better price, a high-quality diamond and excellent customer service. Occasionally we have unique single-use coupons available for readers, so please feel free to reach out and ask.

James Allen James Allen is the leader in online diamond sales. Their imaging technology is the same as inspecting a diamond with a jeweler's loupe. They have the largest exclusive loose diamond inventory online and fantastic prices. They also have the nicest collection of lab-created diamonds online.
What we love about them:
  • No questions asked returns within 30 days of shipment. James Allen will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free International Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisals
  • One free resizing within 60 days of purchase
  • Free ring inscriptions
  • Best-in-class high quality imagery of all diamonds in stock
  • 24/7 Customer Service
  • Best-in-class packaging
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Blue Nile Blue Nile is the largest and most well-known internet jewelry seller. They have a very large exclusive online inventory. Their high-quality images are catching up to James Allens' and their prices are amazing. Save 25% on settings at Blue Nile!

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What we love about them:
  • No questions asked returns within 30 days of shipment. Blue Nile will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisal
  • One free resizing within the first year of purchase
  • High quality images of about half of their diamonds
  • 24/7 Customer Service
  • 100% credit towards future upgrades (must be at least double in value)
  • Best in class fulfillment
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About the author

Mike Fried Mike Fried Mike Fried has over 25 years experience in the diamond industry working with Leo Schachter Diamonds, Moshe Namdar Diamonds, and joining The Diamond Pro in 2007. He is recognized as an industry expert and has been quoted in publications such as Us, People, Page Six, The Next Web and more.

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