Diamond Basics

Choosing a diamond can feel overwhelming, but understanding the basics can simplify the process and help you select a stone that suits your needs and budget. This guide breaks down the key factors you should consider when purchasing a diamond.


Understanding the 4 C’s

The 4 CsCarat, Cut, Clarity, and Color—are the key attributes that determine a diamond’s value and quality.

Carat (Weight)

  • Refers to the diamond’s weight, not size.
  • Larger diamonds are rarer and more expensive.
  • Tip: If you’re on a budget, consider slightly lower carat weights (e.g., 0.9 instead of 1 carat) as they can look similar but cost less.

Cut

  • The most critical factor in determining sparkle.
  • A well-cut diamond reflects light beautifully, enhancing its brilliance.
  • Cut grades: Excellent, Very Good, Good, Fair, and Poor.
  • Tip: Prioritize cut quality over other factors for maximum brilliance.

Clarity

  • Measures imperfections (inclusions) in the diamond
  • Grades range from Flawless (FL) to Included (I1, I2, I3).
  • Tip: Choose “eye-clean” diamonds (e.g., VS2 or SI1) where inclusions are invisible to the naked eye.

Color

  • Refers to the absence of color in a diamond.
  • Graded from D (colorless) to Z (light yellow).
  • Tip: D-F grades are premium but consider G-I for a near-colourless look at a better price.

Shape Matters

Diamonds come in various shapes, each offering a unique aesthetic:

  • Round: Most popular, maximizes brilliance.
  • Princess: Modern, square shape.
  • Cushion: Soft, rounded edges, vintage feel.
  • Oval: Elongates the appearance of fingers.
  • Emerald: Step-cut for a sophisticated look.
  • Tip: Choose a shape that complements the wearer’s style and preferences.

Certification

Certification ensures the diamond’s attributes are independently verified.

Always buy diamonds with certification from a reputable grading authority, such as:

  • GIA (Gemological Institute of America)
  • AGS (American Gem Society)
  • IGI (International Gemological Institute)
  • HRD or EGL.

Set Your Budget

Shop from Reputable Jewellers

  • Choose retailers with good reviews, transparent policies, and excellent customer service.
  • Compare prices across multiple stores or websites.
  • Consult friends and family for first hand advice and experience.

Final Tips

By focusing on the 4 Cs, certification, and your preferences, you’ll find a diamond that matches your expectations and budget.

Want To Learn More?

Check out our other guides to help you choose the best diamond for your budget.

Why Choose Matilda Diamonds?

Buying a diamond is more than just picking a ring from a display case, it’s a journey. Find out why Matilda Diamonds is the right choice for you.

Find Your Best Match

Choosing a diamond isn’t just about brilliance, it’s about finding a shape that speaks to your story, your style, and the love it represents.

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