Radiant Cut Lab Grown Diamonds

Explore our radiant cut lab grown diamonds, a shape that pairs a round diamond’s brilliance with bold, trimmed corners and clean lines. It’s one of our most popular lab grown diamond shapes for engagement rings.

Our Hatton Garden team checks every radiant cut lab grown diamond by hand, looking at the cut, symmetry, and how well light reaches the corners. We only keep stones that stay bright edge to edge, each one certified by GIA or IGI.

You can choose a square radiant lab grown diamond for a balanced look, or a rectangular one to make the finger look longer. We offer a range of carat weights and colours, from bright white stones to warmer shades, and every lab grown diamond is picked for how well it holds light from edge to edge.

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Book a Hatton Garden or Manchester showroom consultation

radiant cut lab grown diamond, Hatton Garden, London

Want a ring that reflects your personal style? Book an appointment with our jewellery specialists to customise a radiant lab grown diamond ring crafted just for you.

Designers from Flawless can help personalise your ring

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What makes radiant lab grown diamonds special

Radiant cut lab grown diamonds stand out for combining sparkle with sharp, geometric lines. With 70 or more facets, light moves through the stone in a way that keeps it bright from every angle, while the bold rectangular or square outline gives it real presence. The trimmed corners add a distinct look and also make the stone less prone to chipping, which suits how often an engagement ring gets worn. Choose a radiant lab grown diamond and you get plenty of sparkle, a strong structure, and a stone that’s grown sustainably, all in one.

Square vs. Rectangular radiant lab diamonds

Radiant lab grown diamonds come in both square and rectangular shapes, each with its own look. A square radiant lab diamond gives a balanced, symmetrical shape that suits a more modern setting. A rectangular radiant lab diamond elongates the finger, which is why it’s often the shape people reach for when they want that effect. Either way, you get the same sparkle and structure, so the choice really comes down to which shape you’re drawn to.

Radiant Cut Lab Diamond - FAQs

Why do radiant lab grown diamonds have trimmed corners?

The trimmed corners on radiant cuts add durability by reducing the risk of chipping, especially compared to sharp-cornered cuts like princess diamonds.

Can radiant lab grown diamonds be set in an east–west orientation?

Absolutely. An east–west setting creates a modern, stylish look that highlights the elongated shape of rectangular radiant lab grown diamonds.

Are radiant lab grown diamonds suitable for men’s jewellery?

Yes, their bold shape and strong lines make radiant cuts an excellent choice for men’s rings, cufflinks, and contemporary jewellery styles.

Does a radiant cut diamond hide inclusions well?

Yes, to an extent. The radiant cut’s faceting pattern is good at masking small inclusions, which means you can often choose a slightly lower clarity grade without it affecting the diamond’s appearance.

How much do radiant cut lab grown diamonds cost compared to natural diamonds?

Lab grown diamonds typically cost significantly less than natural diamonds of the same carat, colour and clarity, so you can choose a larger or higher-quality stone for the same budget.

Are radiant cut lab grown diamonds certified?

Every radiant cut lab grown diamond we sell is independently certified by GIA or IGI, so you always know the exact carat, colour, clarity and cut grade behind your stone.

Do radiant cut lab grown diamonds chip easily?

No. The trimmed corners of a radiant cut have no sharp points, which makes it one of the more durable diamond shapes for everyday wear.

What settings suit a radiant cut lab grown diamond best?

Solitaire and halo settings are popular for keeping the focus on the stone’s shape, while three-stone settings pair well with its bold, faceted look.

Should I choose a square or rectangular radiant cut diamond?

A square radiant, closer to a 1:1 ratio, gives a balanced, symmetrical look, while an elongated rectangular radiant makes the finger appear longer. Both offer the same brilliance, it comes down to personal preference.

Can radiant cut lab grown diamonds be custom made into a ring?

Yes. Choose your loose radiant cut lab grown diamond, and our Hatton Garden team can set it into a ring designed entirely to your preference.

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