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All Platinum Heart Shape Engagement Rings

Platinum heart shape engagement rings, handmade to order by our family workshop in the Cotswolds and set with a diamond you choose yourself. The heart shape is the most romantic diamond of all, a brilliant cut with a clear cleft and a neat point. Platinum is naturally white, so it never needs re-plating, and it is dense and hard-wearing, which keeps claws and small diamonds secure for decades.

This toi et moi ring places an Asscher-cut diamond and a heart-shape diamond side by side in a classic two-stone arrangement. Each main stone sits in ..
from Ex Tax:$1,833
Metal Options
Platinum 18ct Rose Gold 18ct Yellow Gold 18ct White Gold
This toi et moi ring places a heart-shape diamond and a radiant-cut diamond side by side in a classic two-stone arrangement, each held in its own claw..
from Ex Tax:$1,844
Metal Options
Platinum 18ct Rose Gold 18ct Yellow Gold 18ct White Gold
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The heart shape diamond

The heart is a brilliant cut with a cleft at the top and a point at the bottom. It takes real skill to cut well, and a well-cut heart has a clear outline, even lobes and plenty of sparkle.

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 heart diamond

Choose a diamond of at least half a carat, as the heart outline is hard to see on smaller stones. A ratio close to 1.00 keeps the shape balanced. Hearts can hold colour in their lobes, so G to H is a good choice.

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

Half a carat or more. Below that, the cleft and lobes are hard to see once the stone is set, and it can look more like a round.

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.