Oval Lab-Grown Diamond Engagement Rings in the UK: Prices and What the IGI Report Tells You
I want an oval ring, but what am I actually paying for?
Our oval lab-grown diamond engagement rings start at £1,350 in solid 14kt gold. Every one has a centre lab-grown diamond of 1.00ct or more, with an individual IGI grading report included at no extra cost. Each ring is made to order in your UK ring size, so you are choosing the whole piece rather than a loose stone in isolation.
Oval lab-grown diamond engagement ring prices
| Ring | Centre lab-grown diamond | From 14kt | From 18kt |
|---|---|---|---|
| Elodie twist halo, 1.27ct total | 1.00ct oval | £1,350 | £1,750 |
| Louisa with lab-grown diamond shoulders | 1.01ct oval | £1,550 | £1,850 |
| Amelia oval halo, 1.52ct total | 1.12ct oval | £1,550 | £2,050 |
| Francesca with cluster shoulders, 2.57ct total | Oval centre, 1.00ct or more | £1,950 | £2,350 |
| Hermione halo, 2.44ct total | Oval centre, 1.00ct or more | £2,095 | £2,595 |
| Gabriella with marquise accents, 2.72ct total | Approx. 2.00ct oval | £2,195 | £2,550 |
| Isadora trilogy, 3.10ct total | 2.00ct oval | £2,295 | £2,795 |
These are from-prices for solid 14kt and 18kt gold. Your choice of white, yellow or rose gold gives you the same design in the colour that feels most like you.
Why choose an oval lab-grown diamond?
An oval gives you presence without feeling heavy. Its elongated shape can look larger than a round lab-grown diamond of the same carat weight, and it can make the finger look longer. That makes it a strong choice if you want a generous look with a graceful outline.
The shape also changes character with the setting. A clean oval centre keeps the attention on the long curve. A halo adds a brighter frame, a twist brings movement, and lab-grown diamond shoulders carry the detail further around the finger. Marquise accents make the outline feel more directional, while a trilogy gives the centre stone two companions and a more substantial spread.
There is no single best oval ring. The right one is the ring you still want to look at when the proposal has become part of everyday life. Start with the silhouette that feels right, then use the grades and measurements to understand exactly what you are buying.
What the IGI report tells you
An individual IGI grading report is the stone’s factual record. It lists the centre lab-grown diamond’s colour, clarity, carat weight and measurements. Those details let you check the stone in your ring against its individual report rather than relying on a broad description.
Colour and clarity
Every lab-grown diamond we set is D–F colour and VS1 clarity or better. The IGI report records the grade of your individual centre lab-grown diamond, so you can see where it sits within that standard. In plain terms, you are not being asked to accept a vague promise about quality.
Carat weight and measurements
Carat is a measure of weight, not a direct measure of how large a lab-grown diamond looks from above. The report’s measurements give the length and width, which are especially useful for an oval because they help describe its face-up size and proportions. Two oval lab-grown diamonds can share a carat weight and still have slightly different outlines.
Look at the oval as a whole: its outline, balance and how it sits in the chosen setting. The report gives you the facts; the finished ring shows you how those facts come together.
How to choose your oval engagement ring
Choose the feeling first
Ask what you want the ring to say before comparing small differences on paper. A halo feels bright and detailed. A trilogy feels full and symbolic. A twist feels softer and more fluid, while a simpler centre-led design puts the oval shape first. This is the part you will notice every day.
Then compare what your money buys
- Centre: Check the centre lab-grown diamond’s carat weight and measurements, not only the total carat weight of the ring.
- Setting: Decide whether you want a halo, lab-grown diamond shoulders, accent stones or a cleaner outline.
- Gold: Choose solid 14kt or 18kt white, yellow or rose gold. Both are precious-metal choices; the difference is gold content, feel and price.
- Proof: Every centre lab-grown diamond of 1.00ct or more includes its own IGI grading report at no extra cost.
- Fit: Use your UK ring size when ordering. If you are unsure, check our ring size guide before choosing.
Every ring is made to order in around four weeks and UK hallmarked where required. Free tracked and signed-for UK delivery and our 12-month guarantee are included, giving you a clear route from choosing the ring to receiving it.
Frequently asked questions
How much is an oval lab-grown diamond engagement ring in the UK?
Our oval lab-grown diamond engagement rings start at £1,350 in solid 14kt gold. The price rises with the design, total carat weight and your choice of 14kt or 18kt gold.
Does every oval ring include an IGI grading report?
Every ring in this guide has a centre lab-grown diamond of at least 1.00ct, so each includes an individual IGI grading report at no extra cost.
Should I choose 14kt or 18kt gold?
Choose 14kt for a lower starting price and 18kt for a higher gold content. Both are available in solid white, yellow or rose gold and are UK hallmarked where required.
How long will my ring take to arrive?
Your ring is made to order in your UK ring size in around four weeks, followed by free tracked and signed-for UK delivery. It also comes with our 12-month guarantee.
Browse oval lab-grown diamond engagement rings, read our 14kt or 18kt gold guide, or use our ring size guide before you order.