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18ct White Gold Oval Cut Trilogy (3 Stone) Engagement Rings

18ct white gold oval cut trilogy (3 stone) engagement rings, handmade to order by our family workshop in the Cotswolds and set with a diamond you choose yourself. An oval diamond has the sparkle of a round but looks larger for its weight, and its long shape flatters the finger. A trilogy ring sets three diamonds side by side, often said to stand for your past, present and future.

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The oval cut diamond

The oval is a stretched round brilliant, so it has much the same sparkle. Its long shape spreads the weight across a bigger surface, so an oval looks larger than a round of the same carat weight and makes the finger look longer and slimmer. The side stones are matched to the oval centre diamond so the three sit in proportion.

Why a trilogy ring?

A trilogy, or 3 stone, ring sets a centre diamond between two smaller side stones. It gives a wider, fuller look across the finger than a solitaire, and the three stones are often said to stand for your past, present and future together.

Why 18ct white gold?

18ct white gold is 75% pure gold, alloyed with white metals and finished with rhodium plating for a bright, mirror-white shine. It costs less than platinum and is lighter on the finger. As the plating wears, usually over a year or two, a hint of warmth can show; a quick re-plate brings it back. Want to spend less again? See our 9ct white gold engagement rings.

Choosing your oval diamond

Most people prefer a length-to-width ratio of 1.35 to 1.50. Many ovals show a darker "bow tie" across the middle; a little is normal, so it is worth looking closely at the stone's photos before you choose. A G to H colour and SI1 clarity suit most budgets.

Choose your own diamond

Every ring is set with a centre diamond you choose yourself, natural or lab-grown, from our live stock. Each stone has its grading report, and the ring page shows the finished price before you buy.

From our workshop to your door

Each ring is made for you in our Cotswolds workshop in 3 to 4 weeks, in 100% recycled metal, and independently hallmarked. We have made fine jewellery since 1969. UK delivery is free, every order comes with a prepaid returns pack, and returns are free within 30 days.

Frequently Asked Questions

A darker band across the middle of the stone, caused by the way light passes through an elongated shape. Almost every oval has one to some degree. Check the diamond's photos: a faint bow tie is fine, a strong dark one is best avoided.

Yes. The side stones are chosen to suit the size and colour of your centre diamond, so the three look balanced together.

Usually every year or two, depending on how hard the ring is worn. Re-plating with rhodium takes a short visit to a jeweller and brings back the bright white finish.

Yes. Returns are free within 30 days, and every order comes with a prepaid returns pack.