Choosing Your Perfect Diamond

Diamonds come in all shapes and sizes, and there’s sure to be one that suits your taste, style and budget. Several essential aspects will be considered when choosing a diamond, commonly known as the four Cs: Colour, Clarity, Cut and Carat.
diamond colour chart

Diamond Colour

Diamonds are graded by colour – in most cases, the more colourless the diamond, the higher its value. The exceptions to this rule are the coloured diamonds, such as pinks, yellows and blues. GIA is the industry standard for measuring diamond colour. The letter D represents the most colourless diamonds, ranging from the letter Z for a light yellow or brown diamond. As you can imagine, colour grades are judged under controlled lighting and precise viewing conditions.

Diamond Clarity

Clarity is a measure of the flawlessness of a diamond, and the clarity rating affects the beauty and price of each stone. Virtually all diamonds have some imperfections known as inclusions and blemishes. The industry standard rates all gem-grade diamonds on a scale from FL for flawless to I3 for heavily included. A diamond is described as ‘flawless’ if no external imperfections or internal flaws are visible under 10-power magnification. Flawless diamonds are scarce, and this impacts the price accordingly.
Diamond clarity chart
diamond cut chart


The most critical of the four Cs is the cut of your diamond, as it governs its shape and the fire, life, and brilliance it displays. Diamonds are carefully cut and polished to emphasise the stone’s brilliance. Traditional diamond shapes include Brilliant, Princess, Oval, Marquise, Pear, and Emerald. A diamond should work as a mirror, capturing the light and reflecting it from one facet to another before sending it back to the crown of the stone. (The middle diagram shows how the light ideally bounces around when a diamond is cut well.)

Diamond Carat

The weight of a diamond is measured in carats. One carat is equivalent to 0.200 grams – but weight alone doesn’t determine the diamond’s value. When you compare two diamonds of the same weight, the value depends on the quality of each stone. When you compare two diamonds of equal quality, the larger stone will usually hold considerably more value. Typically, a two-carat diamond will be worth more than twice as much as a one-carat stone.
diamond carat chart

Diamond Expert David Law

David Law has been buying and selling diamonds since the early 1980s. When you entrust him to select a diamond for you, he will consider the four Cs, among many other factors, to ensure you experience the WOW factor when you first glimpse the choice of stones he’s personally selected for you.
All his diamonds are presented with a GIA certificate, reassuring you that they meet the highest reliability, consistency, and integrity standards.
trying on a diamond ring

The Consultation Process

On your initial discovery call, David aims to understand your requirements, advise you, answer any questions and suggest options.
The following step will be to arrange a face-to-face Zoom call, meeting him at his Hatton Garden, Central London Studio, or in the comfort of your home to finalise the details.
Our service is all about what works best for you.

Three Ways to Design Your Diamond Jewellery

cad designing

Virtual Design

Virtual design consultations with David (via Zoom, Skype or WhatsApp) can easily be arranged. This bespoke one-to-one service will enable you to share ideas and see your dreams come alive in stunning 3D. 

David Law Jewellery home visits

Home Design

Home design consultations can be arranged. He will bring along his laptop with his past designs and a selection of wax models to inspire you. You can then discuss ideas and design your Jewellery in incredible 3D without leaving your home. 

cad designing sketch

Wimpole Street Design Consultation

Wimpole Street in the heart of London is the perfect place to meet and design your bespoke Jewellery. Meet with David to discuss your design ideas in his offices or the beautiful outdoor gardens. 

The Bespoke Experience

If you’d like diamond jewellery made entirely personal to you, David’s bespoke design service is the perfect way to bring your vision to life. From the initial complimentary design consultation to the handcrafting in his Hatton Garden workshop, David will help you create a uniquely beautiful bespoke piece that’s right in every way. 

loose natural diamond
diamond set wedding rings

Book A Design Consultation

David is on-hand to answer your questions or discuss commissioning a bespoke piece.
Arrange a Zoom virtual consultation, home visit, or see him in person at his Studio close to Bond Street Station, London. As we explore creating your bespoke jewellery piece, you will receive a one-to-one personal service.
Call David Law

Call Today: 0800 024 8940

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