Choosing the right diamond shape is one of the most important decisions when selecting an engagement ring or fine jewellery. A diamond’s shape influences its sparkle, visual size, style, and overall personality.

Whether you’re drawn to the timeless brilliance of a round diamond, the graceful elegance of an oval, or the architectural beauty of an emerald cut, understanding each shape will help you find the diamond that truly reflects your story.

At Her Crown, every ring is crafted with premium IGI-certified lab grown diamonds and designed to celebrate life’s most meaningful moments. This guide compares the ten most popular diamond shapes, explains their unique characteristics, and helps you discover the one that feels uniquely yours.

Diamond Shape Comparison at a Glance

Why Diamond Shape Matters

While the Four Cs—cut, colour, clarity, and carat—determine a diamond’s quality, the shape determines how the diamond feels.

It influences:

• How brilliant the diamond appears.
• Whether it looks larger than its carat weight.
• How it complements your hand.
• Which ring settings suit it best.
• Whether the overall style feels classic, modern, vintage, or distinctive.

There is no universally “best” diamond shape. The right choice is the one that reflects your personality, lifestyle, and the story you want your jewellery to tell.

Round Brilliant Cut

The round brilliant remains the world’s most popular diamond shape for good reason. With 58 precisely arranged facets, it delivers exceptional brilliance and fire, making it the benchmark against which all other diamond shapes are measured.

Choose a round diamond if you love timeless elegance, maximum sparkle, and a style that will never go out of fashion.

Best for: Engagement rings, everyday luxury, timeless elegance.

Learn more: Round Cut Lab Grown Diamond Guide

Oval Cut

Oval diamonds combine the brilliance of a round diamond with an elongated silhouette that creates the illusion of longer, slimmer fingers. Their generous face-up appearance often makes them look larger than round diamonds of the same carat weight.

Choose an oval diamond if you appreciate graceful proportions with exceptional brilliance.

Best for: Elegant, contemporary luxury.

Learn more: Oval Cut Lab Grown Diamond Guide

Pear Shape

The pear cut blends the softness of a round diamond with the elegance of a marquise, creating an unmistakable teardrop silhouette.

Its distinctive shape symbolises individuality while offering beautiful brilliance and excellent finger coverage.

Choose a pear diamond if you love graceful, feminine design with a unique twist.

Best for: Romantic, sophisticated style.

Learn more: Pear Shape Lab Grown Diamond Guide

Emerald Cut

The emerald cut is admired for its clean lines and broad step-cut facets, producing elegant flashes of light rather than intense sparkle.

Its beauty lies in exceptional clarity, symmetry, and understated sophistication.

Choose an emerald cut if you appreciate quiet luxury and architectural design.

Best for: Timeless refinement.

Learn more: Emerald Cut Lab Grown Diamond Guide

Cushion Cut

Recognisable by its softly rounded corners, the cushion cut combines vintage inspiration with modern brilliance.

Available in both brilliant and modified brilliant facet styles, it offers warmth, romance, and exceptional versatility.

Choose a cushion diamond if you value softness and timeless romance.

Best for: Vintage elegance.

Learn more: Cushion Cut Lab Grown Diamond Guide

Princess Cut

The princess cut delivers exceptional sparkle within a contemporary square silhouette.

Its crisp geometry makes it one of the most popular alternatives to the classic round brilliant.

Choose a princess cut if you love modern elegance with outstanding brilliance.

Best for: Contemporary engagement rings.

Learn more: Princess Cut Lab Grown Diamond Guide

Radiant Cut

Radiant diamonds combine the brilliance of a round diamond with the elegant outline of an emerald cut.

The result is one of the brightest fancy-shaped diamonds available today.

Choose a radiant diamond if you want maximum sparkle without choosing a round shape.

Best for: Bold sophistication.

Learn more: Radiant Cut Lab Grown Diamond Guide

Marquise Cut

With its elongated shape and pointed ends, the marquise cut creates remarkable finger coverage while appearing larger than many other diamonds of the same carat weight.

Its royal heritage gives it a distinctive sense of elegance.

Choose a marquise diamond if you appreciate dramatic beauty and timeless individuality.

Best for: Regal elegance.

Learn more: Marquise Cut Lab Grown Diamond Guide

Heart Shape

The heart shape is one of the world’s most recognisable symbols of love.

Expertly cut heart-shaped diamonds combine exceptional brilliance with deep emotional meaning, making them ideal for engagements, anniversaries, milestone celebrations, and meaningful gifts.

Choose a heart-shaped diamond if you want your jewellery to express love, confidence, and individuality.

Best for: Romantic symbolism.

Learn more: Heart Shape Lab Grown Diamond Guide

Asscher Cut

The Asscher cut is defined by its square proportions, deeply trimmed corners, and dramatic step-cut facets.

Its famous “hall of mirrors” effect creates extraordinary depth and visual character, making it a favourite among lovers of Art Deco design.

Choose an Asscher cut if you value precision, craftsmanship, and timeless architectural beauty.

Best for: Vintage sophistication.

Learn more: Asscher Cut Lab Grown Diamond Guide

Which Diamond Shape Sparkles the Most?

If brilliance is your highest priority, these shapes are among the brightest:

1. Round Brilliant
2. Radiant
3. Princess
4. Oval
5. Cushion

Their brilliant-cut facets maximise light return, producing exceptional sparkle and fire.

Which Diamond Shape Looks the Largest?

Elongated diamond shapes often appear larger than their actual carat weight because they cover more surface area.

The shapes with the greatest visual presence include:

• Marquise
• Oval
• Pear
• Radiant
• Cushion

If you want a diamond that appears larger without increasing carat weight, these shapes are excellent choices.

Which Diamond Shape Is Most Timeless?

Timeless styles rarely follow trends—they remain elegant for generations.

Some of the most enduring choices include:

• Round
• Emerald
• Oval
• Cushion

These shapes continue to be among the world’s most popular engagement ring choices because of their lasting appeal.

Which Diamond Shape Suits Your Hand?

Different diamond shapes can complement different hand proportions.

• Shorter fingers: Oval, Marquise, Pear, and Emerald cuts create an elongating effect.
• Long fingers: Round, Cushion, Princess, and Asscher cuts provide balanced proportions.
• Slender hands: Almost every diamond shape works beautifully, allowing personal style to guide the decision.
• Wider fingers: Elongated shapes such as Oval, Pear, Marquise, and Radiant often create a graceful, lengthening appearance.

The best choice is ultimately the one that feels most natural and meaningful to you.

Discover Your Perfect Diamond Shape

The perfect diamond shape is more than a design choice—it reflects your personality, your style, and the moments that define your life.

Whether you are drawn to the timeless brilliance of a Round diamond, the graceful elegance of an Oval, the architectural beauty of an Emerald cut, or the romantic symbolism of a Heart shape, every Her Crown ring is thoughtfully crafted to celebrate your unique journey.

Explore our complete collection of lab grown diamond rings, read our detailed guides for each diamond shape, or work with our specialists to create a bespoke piece designed exclusively for you.

Your story is one of a kind. Your diamond should be too.

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