1 understanding diamond shapes: round brilliant diamond

The round brilliant diamond has been refined over many years to create an optimal balance of fire, brilliance, and scintillation. A well-cut round brilliant diamond will have 57 or 58 facets, including a large table facet on top and a pointed culet at the bottom.

The round brilliant diamond is a type of diamond cut that is most commonly used in engagement rings

and other diamond jewelry. It is characterized by its circular shape and its multiple facets, which are cut to optimize the diamond’s brilliance and sparkle.

The round brilliant cut is the most popular diamond shape, accounting for approximately 75% of all diamond sales. It is often used in solitaire rings, three-stone rings, and other classic diamond jewelry designs.

  1. The round brilliant cut was developed in the early 20th century and has since become the most popular diamond cut due to its ability to maximize light performance.
  2. The round brilliant cut is known for its exceptional brilliance, which is a measure of how much light the diamond reflects back to the eye.
  3. In addition to brilliance, the round brilliant cut also exhibits a high level of fire, which refers to the diamond’s ability to disperse light into its spectral colors.
  4. The GIA (Gemological Institute of America) grades round brilliant diamonds based on the 4Cs – carat weight, color, clarity, and cut. A well-cut round brilliant diamond will receive a high cut grade, which is essential for maximum light performance.
  5. The ideal proportion for a round brilliant cut diamond is a depth percentage of 58-62.3% and a table percentage of 53-58%. These proportions help to ensure maximum light return and sparkle.
  6. Round brilliant diamonds are commonly set in prongs, which allow the maximum amount of light to enter the diamond and enhance its brilliance.
  7. The round brilliant cut is versatile and can be used in a variety of jewelry styles, from traditional solitaire engagement rings to modern halo settings.

Overall, the round brilliant cut is a timeless and classic diamond shape that continues to be a popular choice for engagement rings and other fine jewelry. Its exceptional light performance and versatility make it a great choice for a wide range of styles and tastes.

how to buy round brilliant diamond

Buying a round brilliant diamond involves several steps to ensure you make an informed decision and get the best value for your money. Here’s a guide to help you through the process:

1. Educate Yourself:

  • Learn the 4 Cs: Familiarize yourself with the four main characteristics of diamonds: cut, color, clarity, and carat weight. Round brilliant diamonds are known for their excellent cut, which maximizes their sparkle.
  • Understand diamond grading: Diamonds are graded by organizations like the Gemological Institute of America (GIA). Understanding their grading system helps you evaluate the quality of a diamond.

2. Set a Budget:

  • Determine how much you are willing to spend. Remember that the 4 Cs significantly influence the price of a diamond.

3. Choose a Reputable Jeweler:

  • Research jewelers both online and in your local area. Look for reputable stores with good reviews and credentials. Check if they offer GIA-certified diamonds.

4. Select the Right Cut:

  • Round brilliant diamonds are popular due to their excellent sparkle and fire. Look for diamonds with an Excellent or Ideal cut grade for maximum brilliance.

5. Consider Carat Weight:

  • Decide on the carat weight based on your budget and personal preference. Keep in mind that smaller diamonds with higher cut, color, and clarity grades can appear more brilliant than larger stones with lower grades.

6. Evaluate Color:

  • Round diamonds are known for hiding color well, so you can often choose a diamond with a slightly lower color grade without sacrificing much visual appeal. Grades D to G are considered near colorless and are popular choices.

7. Assess Clarity:

  • Clarity refers to the presence of internal or external flaws (inclusions or blemishes). Look for diamonds with clarity grades of VS1 to SI1 for a good balance between quality and price.

8. Examine the Diamond:

  • If possible, view the diamond in person or request high-quality images/videos online. This allows you to inspect the diamond closely and ensure it meets your expectations.

9. Get the Diamond Certified:

  • Ensure the diamond comes with a reputable grading report (like GIA or AGS) detailing its 4 Cs. This certification provides important information about the diamond’s quality.

10. Consider the Setting:

  • Think about the type of setting you want for the diamond. Different settings can enhance the diamond’s appearance and protect it from damage.

11. Negotiate and Make the Purchase:

  • Don’t hesitate to negotiate the price, especially if you are buying from a physical store. Online retailers often have competitive pricing, but it’s still worth asking for any available discounts.

12. Insure Your Diamond:

  • Once you’ve made the purchase, consider getting insurance for your diamond. This protects your investment in case of loss, theft, or damage.

Remember, patience is key. Take your time to research and find the perfect diamond that fits your budget and preferences.

learn more about round brilliant cut diamonds at AGS Gem lab article.

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