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

18ct white gold Asscher cut trilogy (3 stone) engagement rings, handmade to order by our family workshop in the Cotswolds and set with a diamond you choose yourself. The Asscher cut is a square step-cut diamond with cut corners, much loved in the Art Deco era. A trilogy ring sets three diamonds side by side, often said to stand for your past, present and future.

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The Asscher cut diamond

The Asscher is the square cousin of the emerald cut. Its deep step facets and cut corners draw the eye into the centre of the stone, giving a hypnotic, windmill-like pattern. First cut in 1902, it is the classic Art Deco diamond. The side stones are matched to the Asscher 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 Asscher diamond

Like the emerald cut, the Asscher shows its clarity, so choose VS2 or better. Look for a ratio between 1.00 and 1.05 for a true square. A G or H colour keeps the step facets crisp and bright.

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.

Handmade by a family jeweller

We have been making jewellery in Bourton-on-the-Water since 1969 and are members of the National Association of Jewellers. Your ring is made to order in 100% recycled metal, hallmarked, and ready in 3 to 4 weeks, with free UK delivery and free returns within 30 days.

Frequently Asked Questions

Both are step cuts with cut corners. The Asscher is square, with deeper facets that draw the eye to the centre; the emerald cut is longer, with a calmer, more open look.

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.

3 to 4 weeks from order, as every ring is made to order in our workshop. If you have a date in mind, contact us and we will do our best to help.