Expert Contributor
Daniel is the founder of Regal – Hatton Garden Jewellers, a bespoke luxury jeweller operating from the heart of London’s historic jewellery district. Originally from Antwerp, the global centre of the diamond trade, Daniel grew up surrounded by the diamond industry before bringing that expertise to Hatton Garden seven years ago. Regal specialises in bespoke engagement rings, certified natural and lab-grown diamonds, and handcrafted fine jewellery produced in London.
Most Buyers Are Comparing the Wrong Things
Every week, I speak with customers who have done significant research before walking through the door or booking a consultation. They arrive with spreadsheets, screenshots, and printouts. They have compared carat weights, read about the four Cs, and spent hours on forums debating natural versus lab-grown diamonds.
Most of them are comparing the wrong things.
Not because their research is worthless. The effort is genuine and I respect it. But because the information most readily available online about diamond buying is written either by people trying to sell diamonds or by people who have bought one diamond in their lives and documented the experience. Neither source gives you the perspective of someone who has spent their career inside the trade.
What I want to share here is what I wish every buyer knew before starting the comparison process. Not to sell Regal’s approach specifically, but because buyers who understand these things make better decisions regardless of where they ultimately buy.
Certification Is Not the Same as Quality
The most common misunderstanding I encounter is treating certification as a proxy for quality. A GIA certificate does not mean a diamond is exceptional. It means the diamond has been assessed by the Gemological Institute of America, and its characteristics have been recorded independently.
Two diamonds can both carry GIA certificates and be entirely different stones in terms of how they actually look to the human eye. A certificate tells you the grade. It does not tell you how a diamond performs in light, how its proportions interact, or whether its cut quality sits at the top or the bottom of the grading band it has been assigned to.
This matters because buyers often compare diamonds by certificate grade alone. A 1.00 carat, G colour, VS1 clarity stone from one seller looks identical on paper to a 1.00 carat, G colour, VS1 clarity stone from another seller. In reality, one might be a stone that stops people in their tracks, and the other might look unremarkable under any lighting condition.
The certificate is the starting point of the evaluation, not the end of it.
What you are actually looking for is cut quality within the grade. For round brilliant diamonds, GIA issues cut grades separately, and the difference between an excellent cut and a very good cut at the same colour and clarity can be the difference between a diamond that looks alive and one that looks flat. For fancy shapes like ovals, cushions, and pear shapes, GIA does not issue cut grades, which means the assessment of proportions and light performance requires either expert eyes or specific optical tools.
This is one area where working with a jeweller who understands the stone rather than simply sourcing from a database matters significantly.
The Natural Versus Lab-Grown Conversation Is More Nuanced Than Most Sources Admit
The debate between natural and lab-grown diamonds has become one of the most discussed topics in the jewellery industry over the last several years. Most of the content you will find online takes a strong position in one direction or the other. My experience is that the honest answer is considerably more nuanced than either side usually acknowledges.
Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds. They are not simulants like cubic zirconia or moissanite. They are diamonds produced in a controlled environment over weeks rather than formed under the earth over billions of years. For buyers whose primary consideration is the appearance and physical properties of the stone at a given budget, lab-grown diamonds offer a genuine advantage in terms of size and quality for price.
Where the conversation becomes more complicated is in long-term value. Natural diamonds have a historical track record of retaining value over time. Lab-grown diamonds are a newer category with a shorter track record and a production process that is becoming increasingly efficient, which means their prices have been declining and may continue to do so. Whether this matters depends entirely on whether the buyer intends to treat the diamond as an asset or as a piece of jewellery they intend to keep.
Neither answer is wrong. But buyers deserve to understand the actual trade-offs rather than being pushed toward one category by whoever is most motivated to sell it.
What I tell customers at Regal is to decide what matters most to them before they start comparing stones. If size and optical quality within a budget are the priority, lab-grown is often the stronger choice. If long-term value retention and the significance of a naturally formed stone matter, natural is likely the right direction. Both answers are legitimate, and both lead to beautiful jewellery when the stone is chosen and set well.
Carat Weight Is the Most Overrated Metric in Diamond Buying
Carat weight is the number most buyers fixate on because it is the most legible. It is a single number that feels easy to compare. A 1.5-carat diamond sounds meaningfully different from a 1.3-carat diamond.
The reality is more complicated. Carat is a measure of weight, not size. How large a diamond appears when set in a ring depends on its cut proportions, its shape, and the design of the setting. An oval diamond of 1.2 carats with well-chosen proportions can appear larger face-up than a round brilliant of 1.5 carats with poor depth proportions, because weight distributed across a larger surface area reads differently to the eye than weight concentrated in depth.
This creates a specific trap for buyers who are negotiating price based on carat weight targets. Chasing a specific carat number often leads to compromising on cut quality, which is the single characteristic that most determines how a diamond looks in real life. A smaller, better-cut stone will outperform a heavier, poorly-cut stone in virtually every real-world lighting condition.
The number worth focusing on instead is the millimetre diameter for round stones or the length-to-width ratio for fancy shapes. These are the numbers that tell you how a diamond will actually appear in a ring.
The Setting Matters More Than Most Buyers Realise
Buyers spend the majority of their research time on the stone and comparatively little on the setting. This is understandable because the stone is often the larger part of the budget and the more visible element in marketing photography.
In practice, the setting determines much of what the finished ring actually looks and feels like to wear. The choice between claw, bezel, pavé, channel, or flush settings changes how securely the stone is held, how much light enters from the sides, how the ring feels against adjacent fingers, and how it will wear over years of daily use.
The choice of metal matters beyond aesthetics. Platinum is denser and harder than white gold, which means it holds prongs more securely and develops a patina rather than wearing away. White gold is more affordable but requires rhodium plating over time to maintain its colour. Yellow gold and rose gold settings in 18 carat are durable and do not require replating but will show wear differently depending on the wearer’s lifestyle.
These are not decisions that can be made well from a product page. They require understanding the wearer’s lifestyle, the look they want to achieve, and how the stone they have chosen will interact with the setting design. This is the conversation a genuine jewellery consultation provides and one of the clearest differences between buying from a jeweller and buying from a retailer.
Price Comparison Across Sellers Is Less Straightforward Than It Appears
One of the more frustrating realities of the diamond buying process is that comparing prices across sellers is genuinely difficult to do meaningfully. The same certificate grade in the same shape and carat weight can carry significantly different prices depending on factors that are not visible in the listing.
Cut quality within a grade, as I mentioned earlier, is one. But there are others. The depth and table percentages of a stone, its symmetry and polish grades within the certificate, the presence of fluorescence and how that interacts with the specific colour grade, the position of inclusions within the clarity grade and whether they are visible to the eye or concealed in areas of less visibility, these all affect how a stone looks and how it should be priced.
This means a cheaper stone at the same certificate grade is not necessarily a better deal. It may simply be a stone where the variables that do not appear prominently in the listing are less favourable. Experienced buyers and jewellers look at the full picture before evaluating price. First-time buyers comparing certificate grades and price alone are not comparing equivalent products.
What helps is working with a jeweller who can show you stones side by side and explain specifically why one is priced differently from another. That conversation does more to develop a buyer’s understanding of value than any amount of online research in isolation.
What to Actually Look for in a Jewellery Consultation
The quality of a jewellery consultation tells you a great deal about how a jeweller operates. A genuine consultation starts with questions about the wearer, the lifestyle, the aesthetic direction, and the budget before it shows you a single stone.
A jeweller who begins by showing you their most impressive stock before understanding what you actually need is optimising for the transaction rather than the outcome. A jeweller who spends the first part of the conversation understanding your situation before presenting options is doing the opposite.
The questions worth asking in any consultation include how the jeweller sources their stones, what grading laboratories they work with, what their policy is if you are not happy with the finished piece, and whether they offer independent valuations. The answers reveal the confidence a jeweller has in their own work and the standards they hold themselves to.
At Regal, in Hatton Garden, our consultations are designed to be unhurried precisely because the decisions involved deserve time and clarity. With access to over 2.5 million diamonds sourced worldwide and everything crafted in Hatton Garden, the conversation starts where it should: with what you actually want rather than what happens to be in stock.
The Review Record Tells You What Marketing Cannot
Before committing to any significant jewellery purchase, read the reviews. Not the curated testimonials on the jeweller’s own website. The unfiltered reviews on Google and Trustpilot, where customers describe their experience from consultation through to delivery.
What you are looking for is consistency. A jeweller with 50 outstanding reviews and 10 mediocre ones tells a different story than a jeweller with 550 outstanding reviews and consistent language around the same themes: honest advice, no pressure, quality of the finished piece, and the experience of the process itself.
Review volume at a consistent rating is difficult to manufacture. It reflects what happens repeatedly across hundreds of real customer interactions. When that consistency appears around the same themes over and over, it is telling you something reliable about what your own experience is likely to look like.
The expertise Daniel has built through years inside the diamond trade reflects the kind of genuine operational authority that the Authority Engineering Framework™ is designed to make visible and credible. Editorial presence compounds when it is grounded in real knowledge rather than manufactured positioning.
Build the Authority Your Expertise Deserves
Genuine expertise earns trust. Editorial authority makes that trust visible to the buyers who matter most. Connectively helps premium brands and specialist businesses build credibility that compounds over time.
Connectively.uk
Connectively builds digital authority for brands through real backlinks, trusted media placements, and strategic visibility — with transparency and results.
Links
Contact
info@connectively.uk
United Kingdom
Connectively is a UK-based digital authority agency serving brands worldwide.
© 2026 Connectively.uk — All rights reserved