Choosing an engagement ring is an exciting moment, but if you've never bought fine jewellery before, the terminology can make the process feel more complicated than it needs to be.
Carat, clarity, cut, solitaire, halo, platinum, white gold – what does it all mean, and which things should actually influence your decision?
At David Mellor Jewellers, we've been helping customers choose engagement rings for decades. This guide covers the essentials so you can start your search with a better understanding of what you're buying.
Understanding the Four Cs of Diamonds
If you're considering a diamond engagement ring, you'll often hear about the Four Cs: Carat, Clarity, Colour and Cut. Together, these characteristics help describe and assess a diamond.
Carat
Carat refers to the weight of a diamond rather than its physical dimensions. Two diamonds with the same carat weight can therefore appear slightly different in size depending on their shape, proportions and how they have been cut.
Larger diamonds are generally rarer and command higher prices, but carat is only one part of the picture. Colour, clarity and, importantly, the quality of the cut also influence a diamond's appearance and value.
Clarity
Diamonds are natural materials and can contain internal characteristics known as inclusions and external characteristics known as blemishes. Clarity grading assesses these features.
At the highest end of the scale are diamonds graded Flawless, followed by grades including VVS (Very Very Slightly Included), VS (Very Slightly Included) and SI (Slightly Included).
Importantly, many inclusions are extremely difficult or impossible to see without magnification. A higher clarity grade isn't therefore automatically the best choice for every customer or budget.
Colour
For white diamonds, colour is graded from D to Z. A D-grade diamond is colourless, with increasing amounts of colour becoming apparent as you move further through the scale.
- D–F: Colourless
- G–J: Near colourless
- K–M: Faint colour
- N–Z: Increasingly noticeable colour
The metal surrounding the diamond can also influence how its colour appears. Yellow gold, for example, creates a very different overall appearance from platinum or white gold.
Fancy coloured diamonds are different again and can occur in colours including yellow, pink and blue.
Cut
This is where engagement ring terminology can become confusing, because people often use the word “cut” when talking about two related but different things.
The shape describes the outline of the diamond, such as round, oval, pear, cushion, emerald, princess, radiant or marquise.
A diamond's cut quality relates to factors including its proportions, symmetry and polish, which influence how effectively the stone interacts with light. A beautifully cut diamond can appear brighter and more brilliant, which is why cut quality is such an important consideration.
What's the Difference Between Diamond Shape and Ring Style?
Once you've started looking at engagement rings, you'll also encounter terms such as solitaire, halo and trilogy. These describe the overall style of the ring, rather than the shape of its centre diamond.
This means, for example, that you could choose a solitaire engagement ring with a round, oval, pear or emerald-cut centre stone.
Solitaire Engagement Rings
A solitaire features a single centre stone. Simple, elegant and timeless, it keeps the focus firmly on the diamond or gemstone.
Halo Engagement Rings
A halo design surrounds the centre stone with a border of smaller diamonds, creating additional sparkle around the central diamond or gemstone.
Three-Stone Engagement Rings
Also known as trilogy rings, these designs feature three principal stones, usually with a larger centre stone accompanied by a stone on either side.
Diamond Shoulder Engagement Rings
These designs combine a prominent centre stone with smaller diamonds set into the shoulders of the ring, adding extra sparkle while retaining the focus on the central stone.
Vintage Engagement Rings
If you're looking for something with more individual character, a vintage engagement ring can offer distinctive detailing and designs that differ from contemporary rings.
Which Metal Should You Choose for an Engagement Ring?
The precious metal you choose influences both the appearance of the engagement ring and how it wears over time. Platinum, yellow gold and white gold are among the most popular choices.
Platinum
Platinum is naturally white, dense and durable, making it particularly well suited to jewellery designed to be worn every day. Its naturally white appearance also works beautifully with diamonds and coloured gemstones.
Yellow Gold
Yellow gold provides the warm, traditional appearance associated with fine jewellery and works particularly well with both diamonds and coloured gemstones.
18ct yellow gold is a popular choice for engagement rings, combining a rich gold colour with the practicality required for a frequently worn piece.
White Gold
White gold provides a bright, contemporary appearance and is a popular alternative to platinum.
White gold jewellery is commonly rhodium plated to achieve its bright white finish. This surface finish gradually wears with use and can be professionally reapplied when required.
What About Silver?
Silver can be used for rings, but it is softer and more susceptible to scratching, wear and tarnishing than the precious metals typically chosen for engagement rings.
For a ring intended to be worn every day for many years, it's worth discussing the differences between silver, gold and platinum with a jeweller before making your decision.
How Do You Choose the Right Engagement Ring?
There isn't one engagement ring that's right for everyone. The best choice combines your partner's personal style with practical considerations such as lifestyle and budget.
Look at the jewellery they already wear. Do they favour yellow or white metals? Are their pieces delicate and understated or bold and distinctive? Do they prefer classic designs or something more unusual?
If you're still unsure, you don't have to make every decision alone. Our team can talk you through the different stones, shapes, settings and metals and help narrow down the options.
And if you have something particular in mind that you can't find within an existing collection, our bespoke jewellery design service allows us to explore creating an engagement ring specifically for you.
Find Your Engagement Ring at David Mellor Jewellers
Explore our diamond engagement rings, discover classic solitaire engagement rings and individual vintage engagement rings online, or come and see the rings in person.
You can visit David Mellor Jewellers at our Eastleigh, Andover or Totton stores, where our team can guide you through the options and help you find the right ring.
If you'd like to discuss what you're looking for before visiting, simply contact our team.
