Every ring is handcrafted once you order. IGI certified lab-grown diamond, solid 18K gold or platinum, shipped free and insured worldwide.

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Radiant

A radiant cut takes the clean, cropped-corner outline of an emerald cut and fills it with brilliant faceting. The result is a stone with real structure and a lot of sparkle, which is why a radiant usually looks livelier than an emerald cut of the same size.

If an emerald cut feels a touch too quiet and a round feels too classic, a radiant sits right in between. It's bold, modern and a little bit glamorous, and it suits statement pieces like a signet beautifully.

Those cropped corners are practical too. With no sharp points to catch or chip, it's a lovely choice for a ring you'll wear every day.

EXPLORE THE RINGS BELOW

IGI Certified

Every diamond graded by the world’s leading lab. No guesswork, just proof.

Insured Worldwide Shipping

Every order is shipped fully insured, so your ring arrives safely wherever you are.

Complimentary Engraving

From initials to dates or a secret message, it’s the detail that makes it truly yours.

Prefer something custom?

Build your dream ring

Choose your diamond, metal, and setting - or start from scratch. We'll help you create a ring that's entirely yours.

Rings in real moments

Customer wearing their Una Diamond emerald-cut engagement ring outdoors
Lab-grown diamond solitaire ring in open Una Diamond teal ring box
Engaged couple wearing Una Diamond rings
Three hands together showing a diamond eternity ring
Engaged couple showing off their Una Diamond ring in golden hour sunlight
Close-up of hand wearing a lab-grown diamond ring with autumn foliage in background
Happy newly-engaged woman showing her Una Diamond ring

Pair it, stack it, shape your set.

From bold bands to elegant vintage pieces, each ring is handmade to order.

Pair it, stack it, shape your set.

From bold bands to elegant vintage pieces, each ring is handmade to order.

Need help deciding?

Let’s talk style, stone shapes, or self-gifting.

FAQ

Is a radiant cut sparkly?

Very. It combines a rectangular shape with brilliant-style faceting, so it sparkles more than an emerald cut while keeping cleaner lines than a round.

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