18ct yellow 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 yellow gold has the rich, warm colour of traditional gold, and the colour runs right through the metal, so it never wears off.
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 yellow gold?
18ct yellow gold is 75% pure gold, with the deep, warm colour people picture when they think of a gold ring. It is not plated, so the colour never fades. Some of our yellow gold designs hold the diamond in a white platinum head, so the stone looks as white as possible while the band stays golden. Yellow gold also flatters a slightly warmer diamond, so a stone in the H to J colour range can look just as good as a pricier, whiter one. For a lower price, see our 9ct yellow 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.
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
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.
Yellow gold reflects a little warmth into the diamond, so a near-colourless stone in the H to J range looks just as good as a whiter, more expensive one. If you want an icy white stone, choose a design with a platinum head.
Yes. Returns are free within 30 days, and every order comes with a prepaid returns pack.