An oval three stone engagement ring combines two of the most popular design choices in one piece: the elongating elegance of an oval cut with the symbolic past-present-future meaning of a trilogy setting. It’s no surprise this style continues to be a top pick across the UK.

But not all three stone rings are created equal. The shape of the side stones, the proportions of the setting, and the quality of the craftsmanship all make a real difference to how the ring looks on your hand, and how it holds up over the years. As a family-run jeweller in Hatton Garden, we design and craft bespoke three stone rings in-house, so we know exactly what separates a good trilogy ring from a great one.

Below, we’ve put together five of the best oval three stone engagement ring styles available in the UK, covering different side stone combinations, settings, and aesthetics. Whether you already have a clear picture in mind or you’re still exploring, this guide will help you narrow down the right style before making one of the most meaningful purchases of your life.

1. Bespoke oval three stone ring at A Star Diamonds

A Star Diamonds is a family-run jeweller based in Hatton Garden, London. Every ring is designed and crafted in-house by our goldsmiths, designers, and gemologists, which means when you commission a bespoke oval three stone engagement ring with us, you’re working directly with the people building it.

Signature look and why it suits an oval centre

The oval cut’s elongated shape draws the eye along the finger, making it one of the most flattering centre stone options available. A trilogy setting frames the oval cleanly and reinforces its length without overshadowing it.

Side stones set at roughly 40–50% of the centre stone’s width keep the ring balanced and proportional on the hand.

Side-stone options that work best

With a bespoke ring, you choose the exact shape and size of your side stones. The most popular pairings with an oval centre include:

• Round brilliants for a classic, seamless look
• Pear cuts for a pointed, elongating effect
• Baguettes for a cleaner, more architectural feel

Setting choices that affect sparkle and security

Claw settings maximise light entry and brilliance, while bezel settings wrap the stone in metal for stronger everyday protection. Your lifestyle should guide that choice as much as aesthetics.

If you’re active with your hands, a bezel or half-bezel setting will protect your stones far better long-term.

Natural vs lab-grown diamonds and what to prioritise

We offer both ethically sourced natural diamonds and lab-grown stones that are 100% conflict-free. Lab-grown diamonds deliver the same visual quality at a lower price, giving you the option to increase carat weight or choose higher clarity grades without stretching your budget.

Typical UK pricing and what changes the cost most

Bespoke oval three stone rings at A Star Diamonds typically start from around £2,500. The biggest variables are the carat weight of the centre oval, metal type, and whether you opt for natural or lab-grown stones.

2. Classic oval with round side stones

The classic pairing of an oval centre stone with round brilliant side stones is one of the most popular trilogy combinations in the UK, and for good reason.

Signature look and who it flatters most

Round brilliants sit flush and symmetrical on either side of the oval, creating a seamless arc of light across the finger. This style suits most hand shapes, particularly those who prefer a clean, timeless look over something more directional or avant-garde.

Proportions that keep the ring balanced

Side stones set at around 40–50% of the centre stone’s carat weight prevent the ring from looking top-heavy. Matching the depth of the side stones to the centre stone also helps everything sit level on the band.

Best settings for everyday wear

Claw or prong settings are the most practical choice here, allowing light through the stones while keeping them secure. A four-claw setting on the centre oval works particularly well with this combination.

A well-proportioned claw setting protects your stones without blocking their brilliance.

Diamond specs to focus on for maximum brilliance

Prioritise VS2 clarity and G–H colour in the side stones to keep costs reasonable while maintaining visual consistency with your centre diamond.

Typical UK pricing and value tips

A classic oval three stone engagement ring with round side stones typically starts around £1,800–£3,500 in the UK, with carat weight being the primary cost driver.

3. Oval with pear side stones

Pairing pear-shaped side stones with an oval centre creates one of the most directional silhouettes in the trilogy category. The pointed tips of the pears face outward, drawing the eye along the finger and making the ring appear longer and more slender overall.

Signature look and the silhouette it creates

This combination produces a flowing, tapered outline that feels elegant and distinctive. The three stones work together to create a continuous visual line rather than three separate elements sitting side by side.

How to match pear side stones to an oval centre

Match the length-to-width ratio of your pear side stones to complement your oval’s proportions. Side stones at roughly 40–50% of the centre stone’s width keep the overall ring balanced and avoid a top-heavy appearance.

Common setting styles and what they change visually

A claw setting preserves the pear’s pointed tip and keeps the silhouette sharp, while a bezel setting softens the look and adds protection to the delicate point.

Protecting the tip of each pear stone matters more than with round stones, so discuss setting depth with your jeweller before finalising.

Diamond and symmetry checks before you buy

Check that both pear side stones mirror each other exactly in orientation and cut. Any asymmetry will be immediately visible on the hand and difficult to correct once the ring is set.

Typical UK pricing and where budgets usually go

An oval three stone engagement ring with pear side stones typically ranges from £2,000 to £4,000 in the UK. Most of your budget will go on the centre stone’s carat weight and cut quality rather than the side stones.

4. Oval with baguette side stones

Baguette side stones bring a geometric, step-cut quality to an oval three stone engagement ring that sets it apart from softer, curved pairings. The contrast between the oval’s flowing outline and the baguette’s straight edges creates a distinctly modern look that suits people who prefer clean lines over ornate detail.

Signature look and why baguettes feel more modern

Baguettes sit flat and linear on either side of the oval, keeping the visual focus firmly on the centre stone with minimal competition from the sides.

How baguette size and tapering change the overall shape

Tapered baguettes angle inward toward the band and soften the overall silhouette, while straight baguettes maintain a uniform width for a bolder, more architectural appearance.

Practical considerations for durability and maintenance

Baguettes have open step-cut facets that reveal inclusions more readily than brilliant cuts. Their straight edges chip more easily if knocked, so a bezel or rub-over setting offers better long-term protection.

Discuss a rub-over setting with your jeweller if you work regularly with your hands.

Diamond and cut priorities for a crisp, clean look

Prioritise VS1 clarity or above in your baguettes to avoid visible inclusions under the step-cut facets. Matching the colour grade closely to your oval centre stone keeps the ring looking cohesive rather than mismatched.

Typical UK pricing and what drives it up

Baguette trilogy rings typically start around £2,000 in the UK. Custom-tapered baguettes cut to a specific size, or higher clarity grades, push costs up the most noticeably.

5. Vintage-inspired oval three stone with detailed shoulders

A vintage-inspired oval three stone engagement ring brings ornate detail to a setting that would otherwise stay minimal. Milgrain edging, scrollwork, and engraved shoulder detail transform the band from a simple mount into something with genuine character and depth.

Signature look and the details that define it

Intricate milgrain beading and filigree work along the shoulders define this style immediately. The detailed metalwork frames the oval centre stone and draws the eye toward the setting rather than away from it.

Best side-stone pairings for a vintage feel

Round brilliants or old-cut stones sit most naturally in a vintage setting. Their softer, warmer brilliance complements the hand-finished detail without competing with it.

Metal and finishing choices that suit vintage styles

Yellow gold and rose gold both suit vintage settings well. A matte or satin finish on the shoulders can enhance the engraved detail, while a high-polish band creates stronger contrast.

Yellow gold particularly suits antique-inspired designs, reinforcing the warmth of the overall look.

Diamond choices that keep the ring bright, not dull

Prioritise VS2 clarity and F–H colour to keep your ring looking bright. A lower colour grade can look flat against heavily worked metal.

Typical UK pricing and customisation costs to expect

Vintage-inspired trilogy rings typically start from £2,500 in the UK. Custom engraving and filigree work add to the cost, usually between £200 and £600 depending on complexity.

Final thoughts

Each style covered here offers a genuinely different look on the hand, so the right choice depends on your personal taste, daily lifestyle, and how much customisation you want from the process. The oval three stone engagement ring suits a wide range of preferences, from clean and modern with baguettes to intricate and romantic with vintage-detailed shoulders.

If you already know the aesthetic you’re drawn to, the next step is getting proportions and stone quality right before committing to a final design. Those two factors affect how the ring looks and how long it holds up far more than most buyers expect.

For something made specifically for you, rather than chosen from a ready-made shelf, book a consultation with A Star Diamonds in Hatton Garden. Our goldsmiths and gemologists work with you directly from the first appointment through to the finished ring.