When it comes to brilliance, tradition and timeless beauty, few styles can rival the round diamond. It is the most popular diamond shape for a reason, whether you're designing a bespoke engagement ring or selecting a statement piece of jewellery. And with the rise of lab grown diamonds, you can now enjoy all that sparkle in a sustainable and affordable way.

What Makes Round Diamonds So Special?

A Shape with History and Brilliance

The round brilliant cut has been around since the 17th century, but the modern version we know today was perfected in 1919 by mathematician Marcel Tolkowsky. He used mathematical formulas to calculate the ideal angles and proportions to maximise a diamond's light performance—resulting in the most sparkly diamond cut to date.

The Anatomy of a Round Brilliant

• 58 facets (including the culet)

• Designed for maximum light return, fire and scintillation

• Symmetrical and versatile, suiting nearly every setting

• Known for superior brilliance and timeless appeal

What diamond shape has the most sparkle?
The round brilliant reigns supreme when it comes to sparkle. Its facet pattern is engineered to bounce light perfectly, creating more brilliance than any other shape.

Why Choose a Round Diamond?

Round diamonds, particularly the round brilliant cut, are crafted to maximise light return, creating unmatched sparkle. With 58 perfectly aligned facets, they offer exceptional fire and brilliance, making them a popular choice for engagement rings and everyday jewellery alike.

Are round diamonds more expensive?
Historically round diamonds were generally more expensive than other shapes because they result in more waste during cutting. However, modern cutting techniques, combined with the rise in lab grown diamonds make the prices of different cuts largely comparable when lab grown. 

What diamond shape has the most sparkle?
The round brilliant cut tops the list for sparkle due to its optimal facet pattern. No other shape matches its fire and brilliance.

Round Diamond Engagement Ring Styles

Looking for a ring that will stand the test of time? Round lab grown diamonds work beautifully in both modern and traditional settings.

Popular Styles:

• Solitaire – A timeless classic that lets the round diamond shine. Round Diamond Solitaire
  

• Halo – Adds extra sparkle with a ring of smaller diamonds. Round Halo Engagement Ring
  

• Three-Stone – Symbolising the past, present and future. Explore the Round Trilogy Engagement Ring here.

• Vintage-Inspired – For an art deco twist explore the Art Deco Round with Baguettes

How much is a 1 carat round diamond ring worth?
A lab grown 1 carat round engagement ring typically ranges from £1,500 for a Solitaire, depending on the metal, setting and diamond quality.

Is a 2 carat round diamond too big?
Not at all. A 2 carat round lab diamond makes a bold yet elegant statement. It’s perfect for those who want a standout ring, especially since the cost is significantly lower with lab-grown stones.

Which diamond shape looks biggest per carat?
While round diamonds are perfectly balanced, oval, pear and marquise shapes tend to look slightly larger per carat. However, round diamonds remain the most sparkly and symmetrical option.

Round Diamond Jewellery

Beyond engagement rings, round lab grown diamonds are perfect for fine jewellery—from minimalist staples to bold statements.

Best-Sellers:

• Round Diamond Stud Earrings – Classic, elegant and versatile, see Round Diamond Studs here
  

• Tennis Bracelets – A seamless row of sparkle, shop tennis bracelets here

• Diamond Pendants – Simple yet stunning for daily wear, see our round diamond pendants here
  

Looking for something tailored? We also offer bespoke jewellery handcrafted in the UK using ethical materials and expert design.

Why Choose Lab Grown?

• Environmentally conscious – Lab grown diamonds are created with a smaller environmental footprint

• Better value – Typically 30–50% less than mined equivalents

• Indistinguishable beauty – Same chemical, physical and visual properties as mined diamonds

• Ethically sourced – No conflict concerns or destructive mining practices

Whether you're proposing or treating yourself, lab-grown offers the same brilliance without compromise.

Bespoke Round Engagement Rings – Designed in the UK

At our studio, you can create a custom round diamond ring that reflects your personality and style. From selecting the perfect lab grown diamond to choosing your metal and setting, we work with you from sketch to sparkle. Start your bespoke journey here.