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Platinum Cushion Cut Solitaire Engagement Rings

Platinum cushion cut solitaire engagement rings, handmade to order by our family workshop in the Cotswolds and set with a diamond you choose yourself. The cushion cut has softly rounded corners and large facets, with a romantic, vintage glow. A solitaire holds one diamond on a clean band, so all the attention goes to the stone.

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The cushion cut diamond

The cushion cut is a square or slightly long diamond with softly rounded corners, like a pillow. Its larger facets give big, bold flashes of light, with a warm, vintage feel that goes back over two hundred years. With a cushion diamond, a solitaire shows off the full outline of the stone.

Why a solitaire?

A solitaire is the purest engagement ring: one diamond on a plain band, with nothing to compete with the stone. It never dates, lets more light into the diamond than any other setting, and sits easily beside almost any wedding ring.

Why platinum?

We use 950 platinum, hallmarked in the UK. It is about 95% pure, so it is naturally white all the way through and never needs re-plating. It is heavier than gold and very hard-wearing: rather than wearing away, the metal moves over time and takes on a soft satin look, which a quick polish brings back to a high shine. It is also the best choice if you have sensitive skin.

Choosing your cushion diamond

Our diamond search splits cushions by shape: square cushions have a ratio up to 1.08, and elongated cushions start at 1.15. Cushions can hold a little colour in their corners, so G to H is a good colour choice, with SI1 or better clarity.

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

It is down to taste. A square cushion (ratio up to 1.08) gives a classic, soft look; an elongated cushion (1.15 and above) looks larger face up and lengthens the finger. You can search for either.

Yes. A plain wedding band sits neatly beside most solitaires, and if the setting sits low, a shaped band fits around it. Our wedding ring designer makes matching plain bands.

All precious metals mark with wear. Platinum moves rather than wearing away, so it keeps its weight and holds the diamond securely. Over time it takes on a soft satin finish, and we can polish it back to a bright shine whenever you like.

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