18ct white gold round brilliant diamond engagement rings, handmade to order by our family workshop in the Cotswolds and set with a diamond you choose yourself. The round brilliant is the most popular diamond shape, cut with 57 facets for the most sparkle of any diamond. 18ct white gold gives the bright white look of platinum for a little less, and suits a diamond in any colour grade.
The round brilliant diamond
The round brilliant is cut for maximum sparkle. Its 57 facets are arranged to send as much light as possible back out of the top of the stone, which is why it hides small inclusions and a touch of colour better than any other shape. It suits every setting and every hand, and will never date.
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 round diamond
Cut grade matters more on a round diamond than on any other shape, because the round is graded for cut. Choose Excellent or Very Good for the best sparkle. Because rounds hide colour and inclusions well, a G to H colour and SI1 clarity often looks just as good face up as a far pricier stone.
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
Excellent, or Very Good if you want to put more of your budget into size. Round diamonds are the only shape with a full cut grade, and it has the biggest effect on how much they sparkle.
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.