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Diamond Cut vs Shape – What is the difference?
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Diamond Cut vs Shape – What is the difference?
When browsing for diamonds, two terms often cause confusion: cut and shape. While they’re sometimes used interchangeably, they describe two very different qualities of a diamond.
22 October 2025 2 minute read

Understanding the difference for a more confident choice 

When browsing for diamonds, two terms often cause confusion: cut and shape. While they’re sometimes used interchangeably, they describe two very different qualities of a diamond.

 

Knowing the difference is key when selecting the diamond that feels right for you. 

 

What is Diamond Shape?

Shape refers to the external silhouette of the diamond, as well as its faceting pattern. Classic shapes include round, oval, emerald and radiant. Shape is the most immediately noticeable feature and often comes down to personal preference. 

 

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What is Diamond Cut?

Cut refers to how well a diamond has been proportioned and crafted, including its angles, depth, and symmetry. A well-cut diamond is designed to maximise light performance, returning brilliance and fire with every movement. This is what creates the captivating sparkle that diamonds are known for.

 

 

Gregory Jewellers

 

 

Why Cut Matters

Even the largest diamond can appear lacklustre if it’s poorly cut. Without precise proportions, light escapes rather than reflecting back to the eye, leaving the diamond looking flat.

 

A well-cut diamond, regardless of size, will display a brilliance that immediately draws attention. 

 

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How Cut and Shape Work Together

While cut and shape refer to different qualities, they work together to define a diamond’s overall presence. Shape sets the silhouette, from the soft curves of an oval to the clean lines of an emerald cut. Cut brings that silhouette to life, influencing how light moves through the stone and how much sparkle it displays. When both are considered, you can appreciate not only the outline of the diamond, but the way it catches the eye and sparkles in every setting and moment.

 

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Choosing With Confidence

When selecting your diamond, remember: shape is a matter of style, but cut determines the sparkle. Both are important in creating a diamond that suits you perfectly. 

At Gregory Jewellers, every diamond is carefully assessed by our specialist to ensure exceptional quality in both shape and cut, so your diamond shines as brightly as the love it represents.

 

Gregory Jewellers

 

 

 

Visit us in boutique

Visit us in boutique to find your dream ring.

Our team will guide you through the process, ensuring your engagement ring is crafted to reflect your unique style.

 

 

 

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