A Guide to Diamond Cuts: What It Is and What to Know

When considering the major determinants of diamond value, one cannot understate the importance of cut, which refers not only to the diamond’s shape but also to how its facets interact with light. In this comprehensive guide, we’ll explore the intricacies of diamond cuts, their various types, and what you need to know before selecting the perfect diamond.

Explaining Diamond Cuts

The cut of a diamond refers to the proportions, symmetry, and polish of the stone rather than its shape. It’s a crucial factor in determining a diamond’s brilliance, fire, and overall visual appeal. A well-cut diamond maximises light reflection and refraction, creating a dazzling display of brightness, dispersion, and scintillation.

Types of Diamond Cuts

  • Round Brilliant Cut: The most popular and classic cut; often used for engagement rings due to their timeless beauty.
  • Princess Cut: A square or rectangular cut with pointed corners; its contemporary appeal and exceptional brilliance contributes to its popularity.
  • Emerald Cut: A rectangular cut that has stepped facets and an open table, emphasising clarity and elegance.
  • Asscher Cut: Similar to the emerald cut but with a square shape and more pronounced step facets.
  • Radiant Cut: A rectangular cut with trimmed corners and brilliant-cut facets, combining the sparkle of round diamonds with the elegance of emerald cuts.
  • Cushion Cut: A square or rectangular cut with rounded corners and larger facets, renowned for its romantic and vintage charm.
  • Oval Cut: A modified brilliant cut with an elongated oval shape, offering brilliance and the illusion of elongated fingers.
  • Marquise Cut: A boat-shaped cut with pointed ends, known for its striking appearance and the illusion of greater size.
  • Pear Cut: Also known as teardrop-shaped, combining the brilliance of round and marquise cuts, ideal for pendants and earrings.
  • Heart Cut: A romantic cut with a distinctive heart shape, symbolising love and affection.

Factors to Consider When Choosing a Diamond Cut

1. Budget

Different cuts have varying price points based on their popularity, demand, and the amount of rough diamonds lost during cutting. Round brilliant cuts tend to be the most expensive due to their popularity and efficient use of rough material.

2. Personal Preference

Consider your personal style, preferences, and the occasion for which the diamond will be used. Whether you prefer classic elegance, modern sophistication, or vintage allure, there’s a diamond cut to suit every taste and aesthetic.

3. Brilliance and Sparkle

Evaluate the diamond’s brilliance, fire, and scintillation under various lighting conditions. A well-cut diamond will exhibit intense sparkle, with light bouncing off its facets and creating mesmerising flashes of colour and light.

4. Diamond Shape

While closely related to cut, diamond shape refers specifically to the outline of the stone (e.g., round, princess, emerald). Choose a shape that complements your preferences and flatters the wearer’s hand or jewelry setting.

5. Certification and Quality

Ensure the diamond is certified by a reputable gemological laboratory, such as the American Gem Society (AGS). The certificate provides essential information about the diamond’s cut, colour, clarity, and carat weight, helping you make an informed decision.

6. Setting and Jewelry Design

Consider the intended jewelry setting and design when selecting a diamond cut. Certain cuts may be better suited for specific settings, such as solitaire engagement rings, halo pendants, or vintage-inspired earrings.

7. Size and Carat Weight

The perceived size of a diamond can vary based on its cut and proportions. While some cuts, like the round brilliant, maximise carat weight for visual impact, others may appear larger or smaller depending on their shape and faceting style.

8. Expert Advice

Seek guidance from reputable jewelers or gemologists who can provide insights into diamond cuts, quality, and value. A knowledgeable professional can help you navigate the vast array of options and find the perfect diamond to meet your needs and preferences.


Diamond cuts play a pivotal role in determining the beauty, brilliance, and overall appeal of a diamond. Whether you prefer the timeless elegance of a round brilliant cut or the modern sophistication of a princess cut, understanding the nuances of diamond cuts empowers you to make an informed decision when selecting the perfect diamond for any occasion. By considering factors such as budget, personal preference, brilliance, shape, and quality, you can embark on a journey to find the diamond of your dreams—one that will captivate hearts and stand the test of time.

If you’re looking to buy or sell diamond, reach out to us at Jumbo Gold and Diamonds. As a leading gold and diamond trader in Singapore, we buy and sell gold and diamond, silver and gold bullion, and jewelry.